251479027027 has 2 divisors, whose sum is σ = 251479027028. Its totient is φ = 251479027026.

The previous prime is 251479027021. The next prime is 251479027097. The reversal of 251479027027 is 720720974152.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-251479027027 is a prime.

It is not a weakly prime, because it can be changed into another prime (251479027021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125739513513 + 125739513514.

It is an arithmetic number, because the mean of its divisors is an integer number (125739513514).

Almost surely, 2^251479027027 is an apocalyptic number.

251479027027 is a deficient number, since it is larger than the sum of its proper divisors (1).

251479027027 is an equidigital number, since it uses as much as digits as its factorization.

251479027027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 251479027027 in words is "two hundred fifty-one billion, four hundred seventy-nine million, twenty-seven thousand, twenty-seven".