15240543576864 has 48 divisors (see below), whose sum is σ = 40006708640640. Its totient is φ = 5080145414400.

The previous prime is 15240543576761. The next prime is 15240543576871. The reversal of 15240543576864 is 46867534504251.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 15240543576798 and 15240543576807.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15547689 + ... + 16498839.

It is an arithmetic number, because the mean of its divisors is an integer number (833473096680).

Almost surely, 2^{15240543576864} is an apocalyptic number.

It is an amenable number.

15240543576864 is an abundant number, since it is smaller than the sum of its proper divisors (24766165063776).

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

15240543576864 is a wasteful number, since it uses less digits than its factorization.

15240543576864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118073 (or 1118065 counting only the distinct ones).

The product of its (nonzero) digits is 96768000, while the sum is 60.

The spelling of 15240543576864 in words is "fifteen trillion, two hundred forty billion, five hundred forty-three million, five hundred seventy-six thousand, eight hundred sixty-four".