91329629279618 has 16 divisors (see below), whose sum is σ = 139912814467584. Its totient is φ = 44692074389760.

The previous prime is 91329629279573. The next prime is 91329629279657. The reversal of 91329629279618 is 81697292692319.

It is a super-2 number, since 2×91329629279618² (a number of 29 digits) contains 22 as substring.

It is a Curzon 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, 8799818 + ... + 16127493.

It is an arithmetic number, because the mean of its divisors is an integer number (8744550904224).

Almost surely, 2^{91329629279618} is an apocalyptic number.

91329629279618 is a deficient number, since it is larger than the sum of its proper divisors (48583185187966).

91329629279618 is a wasteful number, since it uses less digits than its factorization.

91329629279618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24966337.

The product of its digits is 317447424, while the sum is 74.

The spelling of 91329629279618 in words is "ninety-one trillion, three hundred twenty-nine billion, six hundred twenty-nine million, two hundred seventy-nine thousand, six hundred eighteen".