399882958650 has 240 divisors, whose sum is σ = 1270494308160. Its totient is φ = 91352448000.

The previous prime is 399882958621. The next prime is 399882958661. The reversal of 399882958650 is 56859288993.

399882958650 is a `hidden beast` number, since 39 + 9 + 8 + 8 + 2 + 9 + 586 + 5 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 89838925 + ... + 89843375.

It is an arithmetic number, because the mean of its divisors is an integer number (5293726284).

Almost surely, 2^399882958650 is an apocalyptic number.

399882958650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 399882958650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635247154080).

399882958650 is an abundant number, since it is smaller than the sum of its proper divisors (870611349510).

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

399882958650 is a wasteful number, since it uses less digits than its factorization.

399882958650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7651 (or 7637 counting only the distinct ones).

The product of its (nonzero) digits is 335923200, while the sum is 72.

The spelling of 399882958650 in words is "three hundred ninety-nine billion, eight hundred eighty-two million, nine hundred fifty-eight thousand, six hundred fifty".