261431217207714 has 16 divisors (see below), whose sum is σ = 522863888765760. Its totient is φ = 87143496677520.

The previous prime is 261431217207691. The next prime is 261431217207733. The reversal of 261431217207714 is 417702712134162.

It is a super-2 number, since 2×261431217207714² (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, 58254102 + ... + 62581169.

It is an arithmetic number, because the mean of its divisors is an integer number (32678993047860).

Almost surely, 2^{261431217207714} is an apocalyptic number.

261431217207714 is an abundant number, since it is smaller than the sum of its proper divisors (261432671558046).

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

261431217207714 is a wasteful number, since it uses less digits than its factorization.

261431217207714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121195865.

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 261431217207714 in words is "two hundred sixty-one trillion, four hundred thirty-one billion, two hundred seventeen million, two hundred seven thousand, seven hundred fourteen".