39474938880 has 792 divisors, whose sum is σ = 153223796232. Its totient is φ = 9385279488.

The previous prime is 39474938863. The next prime is 39474938891. The reversal of 39474938880 is 8883947493.

39474938880 is a `hidden beast` number, since 3 + 9 + 474 + 9 + 3 + 88 + 80 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 11956110336 + 27518828544 = 109344^2 + 165888^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 288138172 + ... + 288138308.

Almost surely, 2^39474938880 is an apocalyptic number.

39474938880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39474938880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76611898116).

39474938880 is an abundant number, since it is smaller than the sum of its proper divisors (113748857352).

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

39474938880 is a wasteful number, since it uses less digits than its factorization.

39474938880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 39474938880 in words is "thirty-nine billion, four hundred seventy-four million, nine hundred thirty-eight thousand, eight hundred eighty".