91930130480 has 80 divisors (see below), whose sum is σ = 232244659200. Its totient is φ = 33712899840.

The previous prime is 91930130443. The next prime is 91930130483. The reversal of 91930130480 is 8403103919.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×91930130480² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (91930130483) 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, 928370 + ... + 1022609.

It is an arithmetic number, because the mean of its divisors is an integer number (2903058240).

Almost surely, 2^91930130480 is an apocalyptic number.

It is an amenable number.

91930130480 is an abundant number, since it is smaller than the sum of its proper divisors (140314528720).

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

91930130480 is a wasteful number, since it uses less digits than its factorization.

91930130480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951042 (or 1951036 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 91930130480 in words is "ninety-one billion, nine hundred thirty million, one hundred thirty thousand, four hundred eighty".