261762057231432 has 64 divisors (see below), whose sum is σ = 655115772222720. Its totient is φ = 87159274052928.

The previous prime is 261762057231431. The next prime is 261762057231469. The reversal of 261762057231432 is 234132750267162.

It is not an unprimeable number, because it can be changed into a prime (261762057231431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852305563 + ... + 852612629.

It is an arithmetic number, because the mean of its divisors is an integer number (10236183940980).

Almost surely, 2^{261762057231432} is an apocalyptic number.

It is an amenable number.

261762057231432 is an abundant number, since it is smaller than the sum of its proper divisors (393353714991288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261762057231432 is a wasteful number, since it uses less digits than its factorization.

261762057231432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345530 (or 345526 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 261762057231432 in words is "two hundred sixty-one trillion, seven hundred sixty-two billion, fifty-seven million, two hundred thirty-one thousand, four hundred thirty-two".