91488725080 has 32 divisors (see below), whose sum is σ = 209733591600. Its totient is φ = 35905008256.

The previous prime is 91488725051. The next prime is 91488725123. The reversal of 91488725080 is 8052788419.

It is a happy number.

It is a super-3 number, since 3×91488725080³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21575410 + ... + 21579649.

Almost surely, 2^91488725080 is an apocalyptic number.

It is an amenable number.

91488725080 is an abundant number, since it is smaller than the sum of its proper divisors (118244866520).

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

91488725080 is a wasteful number, since it uses less digits than its factorization.

91488725080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43155123 (or 43155119 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 52.

The spelling of 91488725080 in words is "ninety-one billion, four hundred eighty-eight million, seven hundred twenty-five thousand, eighty".