91652113081 has 9 divisors (see below), whose sum is σ = 92397069669. Its totient is φ = 90913122300.

The previous prime is 91652113079. The next prime is 91652113093. The reversal of 91652113081 is 18031125619.

The square root of 91652113081 is 302741.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 91652113081 - 2¹ = 91652113079 is a prime.

It is a super-2 number, since 2×91652113081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91652113081.

It is not an unprimeable number, because it can be changed into a prime (91652113061) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 39657916 + ... + 39660226.

Almost surely, 2^91652113081 is an apocalyptic number.

91652113081 is the 302741-st square number.

91652113081 is the 151371-st centered octagonal number.

It is an amenable number.

91652113081 is a deficient number, since it is larger than the sum of its proper divisors (744956588).

91652113081 is an frugal number, since it uses more digits than its factorization.

91652113081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884 (or 2442 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 91652113081 in words is "ninety-one billion, six hundred fifty-two million, one hundred thirteen thousand, eighty-one".