91462005021 has 16 divisors (see below), whose sum is σ = 123584175360. Its totient is φ = 60158392320.

The previous prime is 91462005001. The next prime is 91462005023. The reversal of 91462005021 is 12050026419.

It is not a de Polignac number, because 91462005021 - 2³⁵ = 57102266653 is a prime.

It is a super-2 number, since 2×91462005021² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91462005021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91462005023) 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, 180781 + ... + 464333.

It is an arithmetic number, because the mean of its divisors is an integer number (7724010960).

Almost surely, 2^91462005021 is an apocalyptic number.

It is an amenable number.

91462005021 is a deficient number, since it is larger than the sum of its proper divisors (32122170339).

91462005021 is a wasteful number, since it uses less digits than its factorization.

91462005021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284996.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 91462005021 in words is "ninety-one billion, four hundred sixty-two million, five thousand, twenty-one".