399892151016 has 112 divisors (see below), whose sum is σ = 1125313124100. Its totient is φ = 133163315712.

The previous prime is 399892150997. The next prime is 399892151027. The reversal of 399892151016 is 610151298993.

399892151016 is a `hidden beast` number, since 3 + 9 + 98 + 9 + 21 + 510 + 16 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 340185228516 + 59706922500 = 583254^2 + 244350^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5850510 + ... + 5918466.

Almost surely, 2^399892151016 is an apocalyptic number.

399892151016 is a gapful number since it is divisible by the number (36) 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 399892151016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562656562050).

399892151016 is an abundant number, since it is smaller than the sum of its proper divisors (725420973084).

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

399892151016 is a wasteful number, since it uses less digits than its factorization.

399892151016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68990 (or 68971 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The spelling of 399892151016 in words is "three hundred ninety-nine billion, eight hundred ninety-two million, one hundred fifty-one thousand, sixteen".