91329629279617 has 4 divisors (see below), whose sum is σ = 91485216382896. Its totient is φ = 91174042176340.

The previous prime is 91329629279573. The next prime is 91329629279657. The reversal of 91329629279617 is 71697292692319.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91329629279617 - 2⁷ = 91329629279489 is a prime.

It is a super-2 number, since 2×91329629279617² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91329629279617.

It is not an unprimeable number, because it can be changed into a prime (91329629279657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77793550759 + ... + 77793551932.

It is an arithmetic number, because the mean of its divisors is an integer number (22871304095724).

Almost surely, 2^{91329629279617} is an apocalyptic number.

It is an amenable number.

91329629279617 is a deficient number, since it is larger than the sum of its proper divisors (155587103279).

91329629279617 is a wasteful number, since it uses less digits than its factorization.

91329629279617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155587103278.

The product of its digits is 277766496, while the sum is 73.

The spelling of 91329629279617 in words is "ninety-one trillion, three hundred twenty-nine billion, six hundred twenty-nine million, two hundred seventy-nine thousand, six hundred seventeen".