91458794635 has 16 divisors (see below), whose sum is σ = 118234803456. Its totient is φ = 67514859648.

The previous prime is 91458794629. The next prime is 91458794639. The reversal of 91458794635 is 53649785419.

It is a cyclic number.

It is not a de Polignac number, because 91458794635 - 2⁹ = 91458794123 is a prime.

It is a super-2 number, since 2×91458794635² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91458794639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63579 + ... + 432388.

It is an arithmetic number, because the mean of its divisors is an integer number (7389675216).

Almost surely, 2^91458794635 is an apocalyptic number.

91458794635 is a deficient number, since it is larger than the sum of its proper divisors (26776008821).

91458794635 is a wasteful number, since it uses less digits than its factorization.

91458794635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498822.

The product of its digits is 32659200, while the sum is 61.

The spelling of 91458794635 in words is "ninety-one billion, four hundred fifty-eight million, seven hundred ninety-four thousand, six hundred thirty-five".