15681073227 has 12 divisors (see below), whose sum is σ = 21653931000. Its totient is φ = 10093562752.

The previous prime is 15681073181. The next prime is 15681073249. The reversal of 15681073227 is 72237018651.

It is not a de Polignac number, because 15681073227 - 2⁷ = 15681073099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15681073327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3105102 + ... + 3110147.

It is an arithmetic number, because the mean of its divisors is an integer number (1804494250).

Almost surely, 2^15681073227 is an apocalyptic number.

15681073227 is a deficient number, since it is larger than the sum of its proper divisors (5972857773).

15681073227 is an equidigital number, since it uses as much as digits as its factorization.

15681073227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6215310 (or 6215281 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 15681073227 in words is "fifteen billion, six hundred eighty-one million, seventy-three thousand, two hundred twenty-seven".