252247726121865 has 32 divisors (see below), whose sum is σ = 404477194567680. Its totient is φ = 134238562809024.

The previous prime is 252247726121857. The next prime is 252247726121999. The reversal of 252247726121865 is 568121627742252.

It is not a de Polignac number, because 252247726121865 - 2³ = 252247726121857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252247726121799 and 252247726121808.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74556372 + ... + 77866218.

It is an arithmetic number, because the mean of its divisors is an integer number (12639912330240).

Almost surely, 2^{252247726121865} is an apocalyptic number.

It is an amenable number.

252247726121865 is a deficient number, since it is larger than the sum of its proper divisors (152229468445815).

252247726121865 is a wasteful number, since it uses less digits than its factorization.

252247726121865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320941.

The product of its digits is 45158400, while the sum is 60.

The spelling of 252247726121865 in words is "two hundred fifty-two trillion, two hundred forty-seven billion, seven hundred twenty-six million, one hundred twenty-one thousand, eight hundred sixty-five".