28131572714 has 24 divisors (see below), whose sum is σ = 48914475744. Its totient is φ = 11886550200.

The previous prime is 28131572671. The next prime is 28131572717. The reversal of 28131572714 is 41727513182.

It is not an unprimeable number, because it can be changed into a prime (28131572717) 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, 128732 + ... + 269879.

It is an arithmetic number, because the mean of its divisors is an integer number (2038103156).

Almost surely, 2^28131572714 is an apocalyptic number.

28131572714 is a deficient number, since it is larger than the sum of its proper divisors (20782903030).

28131572714 is an equidigital number, since it uses as much as digits as its factorization.

28131572714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398762 (or 398691 counting only the distinct ones).

The product of its digits is 94080, while the sum is 41.

The spelling of 28131572714 in words is "twenty-eight billion, one hundred thirty-one million, five hundred seventy-two thousand, seven hundred fourteen".