91947498080 has 24 divisors (see below), whose sum is σ = 217225964592. Its totient is φ = 36778999168.

The previous prime is 91947498067. The next prime is 91947498091. The reversal of 91947498080 is 8089474919.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287335772 + ... + 287336091.

It is an arithmetic number, because the mean of its divisors is an integer number (9051081858).

Almost surely, 2^91947498080 is an apocalyptic number.

It is an amenable number.

91947498080 is an abundant number, since it is smaller than the sum of its proper divisors (125278466512).

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

91947498080 is a wasteful number, since it uses less digits than its factorization.

91947498080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574671878 (or 574671870 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 91947498080 in words is "ninety-one billion, nine hundred forty-seven million, four hundred ninety-eight thousand, eighty".