15680648835 has 12 divisors (see below), whose sum is σ = 27179791392. Its totient is φ = 8363012688.

The previous prime is 15680648813. The next prime is 15680648861. The reversal of 15680648835 is 53884608651.

15680648835 is a `hidden beast` number, since 1 + 56 + 80 + 6 + 488 + 35 = 666.

It is not a de Polignac number, because 15680648835 - 2⁸ = 15680648579 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174229387 + ... + 174229476.

It is an arithmetic number, because the mean of its divisors is an integer number (2264982616).

Almost surely, 2^15680648835 is an apocalyptic number.

15680648835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15680648835 is a deficient number, since it is larger than the sum of its proper divisors (11499142557).

15680648835 is a wasteful number, since it uses less digits than its factorization.

15680648835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348458874 (or 348458871 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 15680648835 in words is "fifteen billion, six hundred eighty million, six hundred forty-eight thousand, eight hundred thirty-five".