91360805019 has 16 divisors (see below), whose sum is σ = 132896521344. Its totient is φ = 55366819200.

The previous prime is 91360804991. The next prime is 91360805057. The reversal of 91360805019 is 91050806319.

It is not a de Polignac number, because 91360805019 - 2⁸ = 91360804763 is a prime.

It is a super-2 number, since 2×91360805019² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91360805059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534972 + ... + 684774.

It is an arithmetic number, because the mean of its divisors is an integer number (8306032584).

Almost surely, 2^91360805019 is an apocalyptic number.

91360805019 is a deficient number, since it is larger than the sum of its proper divisors (41535716325).

91360805019 is a wasteful number, since it uses less digits than its factorization.

91360805019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168298.

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 91360805019 in words is "ninety-one billion, three hundred sixty million, eight hundred five thousand, nineteen".