90995673690 has 48 divisors (see below), whose sum is σ = 236637828648. Its totient is φ = 24260479488.

The previous prime is 90995673667. The next prime is 90995673707. The reversal of 90995673690 is 9637659909.

90995673690 is a `hidden beast` number, since 9 + 0 + 9 + 9 + 567 + 3 + 69 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 74868451641 + 16127222049 = 273621^2 + 126993^2 .

It is a super-2 number, since 2×90995673690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341934 + ... + 546726.

Almost surely, 2^90995673690 is an apocalyptic number.

90995673690 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

90995673690 is an abundant number, since it is smaller than the sum of its proper divisors (145642154958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90995673690 is a wasteful number, since it uses less digits than its factorization.

90995673690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209743 (or 209740 counting only the distinct ones).

The product of its (nonzero) digits is 24800580, while the sum is 63.

The spelling of 90995673690 in words is "ninety billion, nine hundred ninety-five million, six hundred seventy-three thousand, six hundred ninety".