91642306023423 has 16 divisors (see below), whose sum is σ = 137084499485440. Its totient is φ = 60501716596152.

The previous prime is 91642306023419. The next prime is 91642306023439. The reversal of 91642306023423 is 32432060324619.

91642306023423 is a `hidden beast` number, since 9 + 1 + 6 + 4 + 2 + 3 + 0 + 602 + 34 + 2 + 3 = 666.

It is not a de Polignac number, because 91642306023423 - 2² = 91642306023419 is a prime.

It is a super-2 number, since 2×91642306023423² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91642306023403) 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, 16476499561 + ... + 16476505122.

It is an arithmetic number, because the mean of its divisors is an integer number (8567781217840).

Almost surely, 2^{91642306023423} is an apocalyptic number.

91642306023423 is a deficient number, since it is larger than the sum of its proper divisors (45442193462017).

91642306023423 is a wasteful number, since it uses less digits than its factorization.

91642306023423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32953004795 (or 32953004789 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

The spelling of 91642306023423 in words is "ninety-one trillion, six hundred forty-two billion, three hundred six million, twenty-three thousand, four hundred twenty-three".