389858614920 has 224 divisors, whose sum is σ = 1316645069400. Its totient is φ = 103845805056.

The previous prime is 389858614913. The next prime is 389858614927. The reversal of 389858614920 is 29416858983.

389858614920 is a `hidden beast` number, since 3 + 8 + 9 + 8 + 5 + 8 + 614 + 9 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (389858614913) and next prime (389858614927).

It can be written as a sum of positive squares in 4 ways, for example, as 181205165124 + 208653449796 = 425682^2 + 456786^2 .

It is not an unprimeable number, because it can be changed into a prime (389858614927) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 27782466 + ... + 27796494.

Almost surely, 2^389858614920 is an apocalyptic number.

389858614920 is a gapful number since it is divisible by the number (30) 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 389858614920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658322534700).

389858614920 is an abundant number, since it is smaller than the sum of its proper divisors (926786454480).

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

389858614920 is a wasteful number, since it uses less digits than its factorization.

389858614920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011 (or 14992 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 389858614920 in words is "three hundred eighty-nine billion, eight hundred fifty-eight million, six hundred fourteen thousand, nine hundred twenty".