15453937968 has 160 divisors (see below), whose sum is σ = 47897886720. Its totient is φ = 4200387840.

The previous prime is 15453937943. The next prime is 15453937973. The reversal of 15453937968 is 86973935451.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 601971 + ... + 627117.

It is an arithmetic number, because the mean of its divisors is an integer number (299361792).

Almost surely, 2^15453937968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15453937968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23948943360).

15453937968 is an abundant number, since it is smaller than the sum of its proper divisors (32443948752).

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

15453937968 is a wasteful number, since it uses less digits than its factorization.

15453937968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25255 (or 25249 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 60.

The spelling of 15453937968 in words is "fifteen billion, four hundred fifty-three million, nine hundred thirty-seven thousand, nine hundred sixty-eight".