15275720488856 has 32 divisors (see below), whose sum is σ = 28896194880000. Its totient is φ = 7570251994656.

The previous prime is 15275720488841. The next prime is 15275720488913. The reversal of 15275720488856 is 65888402757251.

It is a congruent number.

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, 10800656 + ... + 12132831.

It is an arithmetic number, because the mean of its divisors is an integer number (903006090000).

Almost surely, 2^{15275720488856} is an apocalyptic number.

It is an amenable number.

15275720488856 is a deficient number, since it is larger than the sum of its proper divisors (13620474391144).

15275720488856 is a wasteful number, since it uses less digits than its factorization.

15275720488856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22934231 (or 22934227 counting only the distinct ones).

The product of its (nonzero) digits is 301056000, while the sum is 68.

The spelling of 15275720488856 in words is "fifteen trillion, two hundred seventy-five billion, seven hundred twenty million, four hundred eighty-eight thousand, eight hundred fifty-six".