90813365469 has 24 divisors (see below), whose sum is σ = 135714664800. Its totient is φ = 58447458720.

The previous prime is 90813365449. The next prime is 90813365473. The reversal of 90813365469 is 96456331809.

90813365469 is a `hidden beast` number, since 90 + 8 + 1 + 3 + 3 + 6 + 546 + 9 = 666.

It is not a de Polignac number, because 90813365469 - 2⁵ = 90813365437 is a prime.

It is a super-2 number, since 2×90813365469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90813365449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2889562 + ... + 2920820.

It is an arithmetic number, because the mean of its divisors is an integer number (5654777700).

Almost surely, 2^90813365469 is an apocalyptic number.

It is an amenable number.

90813365469 is a deficient number, since it is larger than the sum of its proper divisors (44901299331).

90813365469 is a wasteful number, since it uses less digits than its factorization.

90813365469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42425 (or 42422 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 90813365469 in words is "ninety billion, eight hundred thirteen million, three hundred sixty-five thousand, four hundred sixty-nine".