251316054067 has 6 divisors (see below), whose sum is σ = 272135135652. Its totient is φ = 231984049752.

The previous prime is 251316054053. The next prime is 251316054109. The reversal of 251316054067 is 760450613152.

It is a de Polignac number, because none of the positive numbers 2^k-251316054067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251316054667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 743538453 + ... + 743538790.

It is an arithmetic number, because the mean of its divisors is an integer number (45355855942).

Almost surely, 2^251316054067 is an apocalyptic number.

251316054067 is a deficient number, since it is larger than the sum of its proper divisors (20819081585).

251316054067 is a wasteful number, since it uses less digits than its factorization.

251316054067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487077269 (or 1487077256 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 251316054067 in words is "two hundred fifty-one billion, three hundred sixteen million, fifty-four thousand, sixty-seven".