91412422431 has 32 divisors (see below), whose sum is σ = 133938479616. Its totient is φ = 54995760000.

The previous prime is 91412422429. The next prime is 91412422469. The reversal of 91412422431 is 13422421419.

It is not a de Polignac number, because 91412422431 - 2¹ = 91412422429 is a prime.

It is a super-2 number, since 2×91412422431² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 91412422392 and 91412422401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91412422531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8071785 + ... + 8083101.

It is an arithmetic number, because the mean of its divisors is an integer number (4185577488).

Almost surely, 2^91412422431 is an apocalyptic number.

91412422431 is a deficient number, since it is larger than the sum of its proper divisors (42526057185).

91412422431 is a wasteful number, since it uses less digits than its factorization.

91412422431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13103.

The product of its digits is 13824, while the sum is 33.

The spelling of 91412422431 in words is "ninety-one billion, four hundred twelve million, four hundred twenty-two thousand, four hundred thirty-one".