90449246079 has 20 divisors (see below), whose sum is σ = 143063515584. Its totient is φ = 56752467264.

The previous prime is 90449246047. The next prime is 90449246087. The reversal of 90449246079 is 97064294409.

90449246079 is a `hidden beast` number, since 9 + 0 + 4 + 4 + 9 + 24 + 607 + 9 = 666.

It is not a de Polignac number, because 90449246079 - 2⁵ = 90449246047 is a prime.

It is a super-2 number, since 2×90449246079² (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 (90449247079) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32841487 + ... + 32844240.

Almost surely, 2^90449246079 is an apocalyptic number.

90449246079 is a deficient number, since it is larger than the sum of its proper divisors (52614269505).

90449246079 is a wasteful number, since it uses less digits than its factorization.

90449246079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65685756 (or 65685747 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 90449246079 in words is "ninety billion, four hundred forty-nine million, two hundred forty-six thousand, seventy-nine".