2261634254564 has 24 divisors (see below), whose sum is σ = 4208975157240. Its totient is φ = 1059650873856.

The previous prime is 2261634254543. The next prime is 2261634254617. The reversal of 2261634254564 is 4654524361622.

It can be written as a sum of positive squares in 4 ways, for example, as 1225798836964 + 1035835417600 = 1107158^2 + 1017760^2 .

It is a super-2 number, since 2×2261634254564² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72603047 + ... + 72634190.

It is an arithmetic number, because the mean of its divisors is an integer number (175373964885).

Almost surely, 2^{2261634254564} is an apocalyptic number.

It is an amenable number.

2261634254564 is a deficient number, since it is larger than the sum of its proper divisors (1947340902676).

2261634254564 is a wasteful number, since it uses less digits than its factorization.

2261634254564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145237487 (or 145237485 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 50.

The spelling of 2261634254564 in words is "two trillion, two hundred sixty-one billion, six hundred thirty-four million, two hundred fifty-four thousand, five hundred sixty-four".