15323973672 has 128 divisors (see below), whose sum is σ = 46410105600. Its totient is φ = 4116123648.

The previous prime is 15323973667. The next prime is 15323973677. The reversal of 15323973672 is 27637932351.

It is an interprime number because it is at equal distance from previous prime (15323973667) and next prime (15323973677).

It is not an unprimeable number, because it can be changed into a prime (15323973677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3119154 + ... + 3124062.

It is an arithmetic number, because the mean of its divisors is an integer number (362578950).

Almost surely, 2^15323973672 is an apocalyptic number.

15323973672 is a gapful number since it is divisible by the number (12) 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 15323973672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23205052800).

15323973672 is an abundant number, since it is smaller than the sum of its proper divisors (31086131928).

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

15323973672 is a wasteful number, since it uses less digits than its factorization.

15323973672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035 (or 6031 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 48.

The spelling of 15323973672 in words is "fifteen billion, three hundred twenty-three million, nine hundred seventy-three thousand, six hundred seventy-two".