15787953056 has 24 divisors (see below), whose sum is σ = 31520319264. Its totient is φ = 7782792640.

The previous prime is 15787953037. The next prime is 15787953061. The reversal of 15787953056 is 65035978751.

It is a junction number, because it is equal to n+sod(n) for n = 15787952992 and 15787953010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3472190 + ... + 3476733.

It is an arithmetic number, because the mean of its divisors is an integer number (1313346636).

Almost surely, 2^15787953056 is an apocalyptic number.

15787953056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15787953056 is a deficient number, since it is larger than the sum of its proper divisors (15732366208).

15787953056 is an equidigital number, since it uses as much as digits as its factorization.

15787953056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6949004 (or 6948996 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 56.

It can be divided in two parts, 1578795 and 3056, that added together give a palindrome (1581851).

The spelling of 15787953056 in words is "fifteen billion, seven hundred eighty-seven million, nine hundred fifty-three thousand, fifty-six".