91560368861861 has 8 divisors (see below), whose sum is σ = 91664834605344. Its totient is φ = 91455904869840.

The previous prime is 91560368861827. The next prime is 91560368861879. The reversal of 91560368861861 is 16816886306519.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91560368861861 - 2³⁴ = 91543188992677 is a prime.

It is a super-2 number, since 2×91560368861861² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91560368861791 and 91560368861800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91560368861891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124463855 + ... + 125197331.

It is an arithmetic number, because the mean of its divisors is an integer number (11458104325668).

Almost surely, 2^{91560368861861} is an apocalyptic number.

It is an amenable number.

91560368861861 is a deficient number, since it is larger than the sum of its proper divisors (104465743483).

91560368861861 is a wasteful number, since it uses less digits than its factorization.

91560368861861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875731.

The product of its (nonzero) digits is 89579520, while the sum is 68.

The spelling of 91560368861861 in words is "ninety-one trillion, five hundred sixty billion, three hundred sixty-eight million, eight hundred sixty-one thousand, eight hundred sixty-one".