91625269932 has 486 divisors, whose sum is σ = 298974551148. Its totient is φ = 24461087616.

The previous prime is 91625269907. The next prime is 91625269949. The reversal of 91625269932 is 23996252619.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

91625269932 is a `hidden beast` number, since 9 + 1 + 625 + 2 + 6 + 9 + 9 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (486).

It is a super-2 number, since 2×91625269932² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 161 ways as a sum of consecutive naturals, for example, 1255140648 + ... + 1255140720.

Almost surely, 2^91625269932 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 91625269932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149487275574).

91625269932 is an abundant number, since it is smaller than the sum of its proper divisors (207349281216).

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

91625269932 is a wasteful number, since it uses less digits than its factorization.

91625269932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 104 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The spelling of 91625269932 in words is "ninety-one billion, six hundred twenty-five million, two hundred sixty-nine thousand, nine hundred thirty-two".