15862113990 has 96 divisors (see below), whose sum is σ = 43677294336. Its totient is φ = 3985565760.

The previous prime is 15862113983. The next prime is 15862114001. The reversal of 15862113990 is 9931126851.

15862113990 is a `hidden beast` number, since 1 + 5 + 8 + 621 + 13 + 9 + 9 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81505 + ... + 195875.

It is an arithmetic number, because the mean of its divisors is an integer number (454971816).

Almost surely, 2^15862113990 is an apocalyptic number.

15862113990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15862113990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21838647168).

15862113990 is an abundant number, since it is smaller than the sum of its proper divisors (27815180346).

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

15862113990 is a wasteful number, since it uses less digits than its factorization.

15862113990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114474 (or 114471 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 15862113990 in words is "fifteen billion, eight hundred sixty-two million, one hundred thirteen thousand, nine hundred ninety".