91627367064 has 128 divisors (see below), whose sum is σ = 241964236800. Its totient is φ = 28857121920.

The previous prime is 91627367063. The next prime is 91627367113. The reversal of 91627367064 is 46076372619.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 91627366998 and 91627367016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91627367063) 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, 24957949 + ... + 24961619.

It is an arithmetic number, because the mean of its divisors is an integer number (1890345600).

Almost surely, 2^91627367064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91627367064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120982118400).

91627367064 is an abundant number, since it is smaller than the sum of its proper divisors (150336869736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91627367064 is a wasteful number, since it uses less digits than its factorization.

91627367064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245 (or 4241 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 51.

The spelling of 91627367064 in words is "ninety-one billion, six hundred twenty-seven million, three hundred sixty-seven thousand, sixty-four".