91265684480 has 88 divisors (see below), whose sum is σ = 221569441632. Its totient is φ = 36066271232.

The previous prime is 91265684449. The next prime is 91265684507. The reversal of 91265684480 is 8448656219.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 317579 + ... + 532341.

It is an arithmetic number, because the mean of its divisors is an integer number (2517834564).

Almost surely, 2^91265684480 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 91265684480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110784720816).

91265684480 is an abundant number, since it is smaller than the sum of its proper divisors (130303757152).

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

91265684480 is a wasteful number, since it uses less digits than its factorization.

91265684480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214871 (or 214853 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 91265684480 in words is "ninety-one billion, two hundred sixty-five million, six hundred eighty-four thousand, four hundred eighty".