91622389013 has 16 divisors (see below), whose sum is σ = 97846963200. Its totient is φ = 85599406464.

The previous prime is 91622389009. The next prime is 91622389021. The reversal of 91622389013 is 31098322619.

It is a cyclic number.

It is not a de Polignac number, because 91622389013 - 2² = 91622389009 is a prime.

It is a super-2 number, since 2×91622389013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91622389073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103313 + ... + 440361.

It is an arithmetic number, because the mean of its divisors is an integer number (6115435200).

Almost surely, 2^91622389013 is an apocalyptic number.

It is an amenable number.

91622389013 is a deficient number, since it is larger than the sum of its proper divisors (6224574187).

91622389013 is a wasteful number, since it uses less digits than its factorization.

91622389013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337348.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 91622389013 in words is "ninety-one billion, six hundred twenty-two million, three hundred eighty-nine thousand, thirteen".