91329629279573 has 2 divisors, whose sum is σ = 91329629279574. Its totient is φ = 91329629279572.

The previous prime is 91329629279563. The next prime is 91329629279657. The reversal of 91329629279573 is 37597292692319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52808155354084 + 38521473925489 = 7266922^2 + 6206567^2 .

It is a cyclic number.

It is not a de Polignac number, because 91329629279573 - 2¹⁴ = 91329629263189 is a prime.

It is a super-2 number, since 2×91329629279573² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91329629279573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91329629279563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45664814639786 + 45664814639787.

It is an arithmetic number, because the mean of its divisors is an integer number (45664814639787).

Almost surely, 2^{91329629279573} is an apocalyptic number.

It is an amenable number.

91329629279573 is a deficient number, since it is larger than the sum of its proper divisors (1).

91329629279573 is an equidigital number, since it uses as much as digits as its factorization.

91329629279573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 694416240, while the sum is 74.

The spelling of 91329629279573 in words is "ninety-one trillion, three hundred twenty-nine billion, six hundred twenty-nine million, two hundred seventy-nine thousand, five hundred seventy-three".