15868041432 has 32 divisors (see below), whose sum is σ = 40079079600. Its totient is φ = 5234817024.

The previous prime is 15868041407. The next prime is 15868041433. The reversal of 15868041432 is 23414086851.

It is a happy number.

It is a super-2 number, since 2×15868041432² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15868041433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3405757 + ... + 3410412.

Almost surely, 2^15868041432 is an apocalyptic number.

15868041432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15868041432 is an abundant number, since it is smaller than the sum of its proper divisors (24211038168).

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

15868041432 is a wasteful number, since it uses less digits than its factorization.

15868041432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816275 (or 6816271 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 15868041432 in words is "fifteen billion, eight hundred sixty-eight million, forty-one thousand, four hundred thirty-two".