15197364840 has 256 divisors, whose sum is σ = 53228851200. Its totient is φ = 3399542784.

The previous prime is 15197364817. The next prime is 15197364851. The reversal of 15197364840 is 4846379151.

It is a self number, because there is not a number n which added to its sum of digits gives 15197364840.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8522589 + ... + 8524371.

It is an arithmetic number, because the mean of its divisors is an integer number (207925200).

Almost surely, 2^15197364840 is an apocalyptic number.

15197364840 is a gapful number since it is divisible by the number (10) 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 15197364840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26614425600).

15197364840 is an abundant number, since it is smaller than the sum of its proper divisors (38031486360).

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

15197364840 is a wasteful number, since it uses less digits than its factorization.

15197364840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 15197364840 in words is "fifteen billion, one hundred ninety-seven million, three hundred sixty-four thousand, eight hundred forty".