399118265628 has 24 divisors (see below), whose sum is σ = 932795180688. Its totient is φ = 132822389376.

The previous prime is 399118265617. The next prime is 399118265669. The reversal of 399118265628 is 826562811993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27121401 + ... + 27136112.

It is an arithmetic number, because the mean of its divisors is an integer number (38866465862).

Almost surely, 2^399118265628 is an apocalyptic number.

It is an amenable number.

399118265628 is an abundant number, since it is smaller than the sum of its proper divisors (533676915060).

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

399118265628 is a wasteful number, since it uses less digits than its factorization.

399118265628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54258133 (or 54258131 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 60.

The spelling of 399118265628 in words is "three hundred ninety-nine billion, one hundred eighteen million, two hundred sixty-five thousand, six hundred twenty-eight".