393874845552 has 60 divisors (see below), whose sum is σ = 1132094494440. Its totient is φ = 127743191424.

The previous prime is 393874845523. The next prime is 393874845563. The reversal of 393874845552 is 255548478393.

393874845552 is a `hidden beast` number, since 3 + 9 + 3 + 8 + 74 + 8 + 4 + 5 + 552 = 666.

It is a super-2 number, since 2×393874845552² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 393874845552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36957402 + ... + 36968057.

It is an arithmetic number, because the mean of its divisors is an integer number (18868241574).

Almost surely, 2^393874845552 is an apocalyptic number.

It is an amenable number.

393874845552 is an abundant number, since it is smaller than the sum of its proper divisors (738219648888).

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

393874845552 is a wasteful number, since it uses less digits than its factorization.

393874845552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73925510 (or 73925501 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 63.

The spelling of 393874845552 in words is "three hundred ninety-three billion, eight hundred seventy-four million, eight hundred forty-five thousand, five hundred fifty-two".