8939657485476 has 189 divisors, whose sum is σ = 24924442726099. Its totient is φ = 2803737328128.

The previous prime is 8939657485453. The next prime is 8939657485487. The reversal of 8939657485476 is 6745847569398.

The square root of 8939657485476 is 2989926.

It is a perfect power (a square), and thus also a powerful number.

8939657485476 is a `hidden beast` number, since 8 + 9 + 3 + 9 + 65 + 7 + 4 + 8 + 547 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3647817325476 + 5291840160000 = 1909926^2 + 2300400^2 .

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8939657485395 and 8939657485404.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 2744750440 + ... + 2744753696.

Almost surely, 2^{8939657485476} is an apocalyptic number.

8939657485476 is the 2989926-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8939657485476

8939657485476 is an abundant number, since it is smaller than the sum of its proper divisors (15984785240623).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8939657485476 is an frugal number, since it uses more digits than its factorization.

8939657485476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570 (or 3279 counting only the distinct ones).

The product of its digits is 10973491200, while the sum is 81.

Multiplying 8939657485476 by its sum of digits (81), we get a square (724112256323556 = 26909334²).

8939657485476 divided by its sum of digits (81) gives a square (110366141796 = 332214²).

The spelling of 8939657485476 in words is "eight trillion, nine hundred thirty-nine billion, six hundred fifty-seven million, four hundred eighty-five thousand, four hundred seventy-six".