3985554562380 has 48 divisors (see below), whose sum is σ = 12399503084640. Its totient is φ = 1062814549824.

The previous prime is 3985554562373. The next prime is 3985554562439. The reversal of 3985554562380 is 832654555893.

It is a happy number.

3985554562380 is a `hidden beast` number, since 3 + 9 + 8 + 5 + 5 + 545 + 6 + 2 + 3 + 80 = 666.

It is a super-2 number, since 2×3985554562380² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3690327759 + ... + 3690328838.

It is an arithmetic number, because the mean of its divisors is an integer number (258322980930).

Almost surely, 2^{3985554562380} is an apocalyptic number.

3985554562380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3985554562380 is an abundant number, since it is smaller than the sum of its proper divisors (8413948522260).

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

3985554562380 is a wasteful number, since it uses less digits than its factorization.

3985554562380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7380656615 (or 7380656607 counting only the distinct ones).

The product of its (nonzero) digits is 155520000, while the sum is 63.

The spelling of 3985554562380 in words is "three trillion, nine hundred eighty-five billion, five hundred fifty-four million, five hundred sixty-two thousand, three hundred eighty".