91265381352 has 24 divisors (see below), whose sum is σ = 247177074690. Its totient is φ = 30421793760.

The previous prime is 91265381327. The next prime is 91265381353. The reversal of 91265381352 is 25318356219.

91265381352 is a `hidden beast` number, since 9 + 1 + 265 + 38 + 1 + 352 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51462737316 + 39802644036 = 226854^2 + 199506^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 91265381298 and 91265381307.

It is not an unprimeable number, because it can be changed into a prime (91265381353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 633787299 + ... + 633787442.

Almost surely, 2^91265381352 is an apocalyptic number.

It is an amenable number.

91265381352 is an abundant number, since it is smaller than the sum of its proper divisors (155911693338).

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

91265381352 is a wasteful number, since it uses less digits than its factorization.

91265381352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267574753 (or 1267574746 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The spelling of 91265381352 in words is "ninety-one billion, two hundred sixty-five million, three hundred eighty-one thousand, three hundred fifty-two".