251243363342152 has 16 divisors (see below), whose sum is σ = 477716254243200. Its totient is φ = 123852362210640.

The previous prime is 251243363342143. The next prime is 251243363342201.

251243363342152 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×251243363342152² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221164931952 + ... + 221164933087.

It is an arithmetic number, because the mean of its divisors is an integer number (29857265890200).

Almost surely, 2^{251243363342152} is an apocalyptic number.

It is an amenable number.

251243363342152 is a deficient number, since it is larger than the sum of its proper divisors (226472890901048).

251243363342152 is a wasteful number, since it uses less digits than its factorization.

251243363342152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442329865116 (or 442329865112 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 46.

The spelling of 251243363342152 in words is "two hundred fifty-one trillion, two hundred forty-three billion, three hundred sixty-three million, three hundred forty-two thousand, one hundred fifty-two".