261544427231414 has 16 divisors (see below), whose sum is σ = 393384865164720. Its totient is φ = 130416168143520.

The previous prime is 261544427231341. The next prime is 261544427231443. The reversal of 261544427231414 is 414132724445162.

It is a super-2 number, since 2×261544427231414² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 10569452 + ... + 25195280.

It is an arithmetic number, because the mean of its divisors is an integer number (24586554072795).

Almost surely, 2^{261544427231414} is an apocalyptic number.

261544427231414 is a deficient number, since it is larger than the sum of its proper divisors (131840437933306).

261544427231414 is a wasteful number, since it uses less digits than its factorization.

261544427231414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14650175.

The product of its digits is 5160960, while the sum is 50.

The spelling of 261544427231414 in words is "two hundred sixty-one trillion, five hundred forty-four billion, four hundred twenty-seven million, two hundred thirty-one thousand, four hundred fourteen".