261657032472714 has 16 divisors (see below), whose sum is σ = 524506124324160. Its totient is φ = 87020334261120.

The previous prime is 261657032472643. The next prime is 261657032472721. The reversal of 261657032472714 is 417274230756162.

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, 49669137927 + ... + 49669143194.

It is an arithmetic number, because the mean of its divisors is an integer number (32781632770260).

Almost surely, 2^{261657032472714} is an apocalyptic number.

261657032472714 is an abundant number, since it is smaller than the sum of its proper divisors (262849091851446).

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

261657032472714 is a wasteful number, since it uses less digits than its factorization.

261657032472714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99338281565.

The product of its (nonzero) digits is 23708160, while the sum is 57.

The spelling of 261657032472714 in words is "two hundred sixty-one trillion, six hundred fifty-seven billion, thirty-two million, four hundred seventy-two thousand, seven hundred fourteen".