399112054548 has 24 divisors (see below), whose sum is σ = 940302836928. Its totient is φ = 131745726336.

The previous prime is 399112054477. The next prime is 399112054603. The reversal of 399112054548 is 845450211993.

It is a self number, because there is not a number n which added to its sum of digits gives 399112054548.

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, 161451861 + ... + 161454332.

It is an arithmetic number, because the mean of its divisors is an integer number (39179284872).

Almost surely, 2^399112054548 is an apocalyptic number.

It is an amenable number.

399112054548 is an abundant number, since it is smaller than the sum of its proper divisors (541190782380).

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

399112054548 is a wasteful number, since it uses less digits than its factorization.

399112054548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322906303 (or 322906301 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 399112054548 in words is "three hundred ninety-nine billion, one hundred twelve million, fifty-four thousand, five hundred forty-eight".