91953199485 has 80 divisors (see below), whose sum is σ = 196573107456. Its totient is φ = 40208078592.

The previous prime is 91953199447. The next prime is 91953199511. The reversal of 91953199485 is 58499135919.

91953199485 is a `hidden beast` number, since 9 + 1 + 9 + 531 + 9 + 94 + 8 + 5 = 666.

It is not a de Polignac number, because 91953199485 - 2⁷ = 91953199357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 639904 + ... + 770313.

Almost surely, 2^91953199485 is an apocalyptic number.

It is an amenable number.

91953199485 is an abundant number, since it is smaller than the sum of its proper divisors (104619907971).

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

91953199485 is a wasteful number, since it uses less digits than its factorization.

91953199485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410264 (or 1410255 counting only the distinct ones).

The product of its digits is 15746400, while the sum is 63.

The spelling of 91953199485 in words is "ninety-one billion, nine hundred fifty-three million, one hundred ninety-nine thousand, four hundred eighty-five".