261422572263274 has 16 divisors (see below), whose sum is σ = 399533237359200. Its totient is φ = 128244834216720.

The previous prime is 261422572263241. The next prime is 261422572263299. The reversal of 261422572263274 is 472362275224162.

It is a super-2 number, since 2×261422572263274² (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 7 ways as a sum of consecutive naturals, for example, 83751877 + ... + 86817175.

It is an arithmetic number, because the mean of its divisors is an integer number (24970827334950).

Almost surely, 2^{261422572263274} is an apocalyptic number.

261422572263274 is a deficient number, since it is larger than the sum of its proper divisors (138110665095926).

261422572263274 is a wasteful number, since it uses less digits than its factorization.

261422572263274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869925.

The product of its digits is 27095040, while the sum is 55.

The spelling of 261422572263274 in words is "two hundred sixty-one trillion, four hundred twenty-two billion, five hundred seventy-two million, two hundred sixty-three thousand, two hundred seventy-four".