15128763875265 has 32 divisors (see below), whose sum is σ = 24670060119936. Its totient is φ = 7914085137920.

The previous prime is 15128763875249. The next prime is 15128763875297. The reversal of 15128763875265 is 56257836782151.

It is a happy number.

15128763875265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15128763875265 - 2⁴ = 15128763875249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15128763875196 and 15128763875205.

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, 142644 + ... + 5502533.

It is an arithmetic number, because the mean of its divisors is an integer number (770939378748).

Almost surely, 2^{15128763875265} is an apocalyptic number.

15128763875265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15128763875265 is a deficient number, since it is larger than the sum of its proper divisors (9541296244671).

15128763875265 is a wasteful number, since it uses less digits than its factorization.

15128763875265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648609.

The product of its digits is 169344000, while the sum is 66.

The spelling of 15128763875265 in words is "fifteen trillion, one hundred twenty-eight billion, seven hundred sixty-three million, eight hundred seventy-five thousand, two hundred sixty-five".