261092401525227 has 64 divisors (see below), whose sum is σ = 369899250237440. Its totient is φ = 163350410227200.

The previous prime is 261092401525211. The next prime is 261092401525237. The reversal of 261092401525227 is 722525104290162.

It is not a de Polignac number, because 261092401525227 - 2⁴ = 261092401525211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (261092401525237) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21865198077 + ... + 21865210017.

It is an arithmetic number, because the mean of its divisors is an integer number (5779675784960).

Almost surely, 2^{261092401525227} is an apocalyptic number.

261092401525227 is a deficient number, since it is larger than the sum of its proper divisors (108806848712213).

261092401525227 is a wasteful number, since it uses less digits than its factorization.

261092401525227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16484.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 261092401525227 in words is "two hundred sixty-one trillion, ninety-two billion, four hundred one million, five hundred twenty-five thousand, two hundred twenty-seven".