399101440512 has 160 divisors (see below), whose sum is σ = 1110210406272. Its totient is φ = 127163531264.

The previous prime is 399101440499. The next prime is 399101440541. The reversal of 399101440512 is 215044101993.

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, 70547188 + ... + 70552844.

Almost surely, 2^399101440512 is an apocalyptic number.

399101440512 is a gapful number since it is divisible by the number (32) 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 399101440512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555105203136).

399101440512 is an abundant number, since it is smaller than the sum of its proper divisors (711108965760).

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

399101440512 is a wasteful number, since it uses less digits than its factorization.

399101440512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7698 (or 7682 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 399101440512 in words is "three hundred ninety-nine billion, one hundred one million, four hundred forty thousand, five hundred twelve".