91037659252 has 24 divisors (see below), whose sum is σ = 162346324896. Its totient is φ = 44653254048.

The previous prime is 91037659217. The next prime is 91037659253. The reversal of 91037659252 is 25295673019.

It is a super-2 number, since 2×91037659252² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91037659196 and 91037659205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91037659253) 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, 1562883 + ... + 1620085.

It is an arithmetic number, because the mean of its divisors is an integer number (6764430204).

Almost surely, 2^91037659252 is an apocalyptic number.

It is an amenable number.

91037659252 is a deficient number, since it is larger than the sum of its proper divisors (71308665644).

91037659252 is a wasteful number, since it uses less digits than its factorization.

91037659252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64767 (or 64765 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 49.

The spelling of 91037659252 in words is "ninety-one billion, thirty-seven million, six hundred fifty-nine thousand, two hundred fifty-two".