91355632248 has 32 divisors (see below), whose sum is σ = 228396580560. Its totient is φ = 30450877440.

The previous prime is 91355632243. The next prime is 91355632261. The reversal of 91355632248 is 84223655319.

It is a junction number, because it is equal to n+sod(n) for n = 91355632197 and 91355632206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91355632243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224168 + ... + 1296648.

Almost surely, 2^91355632248 is an apocalyptic number.

It is an amenable number.

91355632248 is an abundant number, since it is smaller than the sum of its proper divisors (137040948312).

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

91355632248 is a wasteful number, since it uses less digits than its factorization.

91355632248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125007 (or 125003 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 48.

The spelling of 91355632248 in words is "ninety-one billion, three hundred fifty-five million, six hundred thirty-two thousand, two hundred forty-eight".