15426932020 has 12 divisors (see below), whose sum is σ = 32396557284. Its totient is φ = 6170772800.

The previous prime is 15426932011. The next prime is 15426932041. The reversal of 15426932020 is 2023962451.

It can be written as a sum of positive squares in 2 ways, for example, as 9659744656 + 5767187364 = 98284^2 + 75942^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385673281 + ... + 385673320.

It is an arithmetic number, because the mean of its divisors is an integer number (2699713107).

Almost surely, 2^15426932020 is an apocalyptic number.

15426932020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15426932020 is an abundant number, since it is smaller than the sum of its proper divisors (16969625264).

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

15426932020 is a wasteful number, since it uses less digits than its factorization.

15426932020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771346610 (or 771346608 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 15426932020 in words is "fifteen billion, four hundred twenty-six million, nine hundred thirty-two thousand, twenty".