91955857363 has 8 divisors (see below), whose sum is σ = 92755000832. Its totient is φ = 91157887296.

The previous prime is 91955857339. The next prime is 91955857369. The reversal of 91955857363 is 36375855919.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91955857363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91955857369) 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, 135570 + ... + 449767.

It is an arithmetic number, because the mean of its divisors is an integer number (11594375104).

Almost surely, 2^91955857363 is an apocalyptic number.

91955857363 is a deficient number, since it is larger than the sum of its proper divisors (799143469).

91955857363 is a wasteful number, since it uses less digits than its factorization.

91955857363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586701.

The product of its digits is 30618000, while the sum is 61.

The spelling of 91955857363 in words is "ninety-one billion, nine hundred fifty-five million, eight hundred fifty-seven thousand, three hundred sixty-three".