90223745607 has 12 divisors (see below), whose sum is σ = 133845436920. Its totient is φ = 58523510448.

The previous prime is 90223745539. The next prime is 90223745609. The reversal of 90223745607 is 70654732209.

90223745607 is a `hidden beast` number, since 9 + 0 + 2 + 2 + 37 + 4 + 5 + 607 = 666.

It is not a de Polignac number, because 90223745607 - 2²⁴ = 90206968391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90223745609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135470757 + ... + 135471422.

It is an arithmetic number, because the mean of its divisors is an integer number (11153786410).

Almost surely, 2^90223745607 is an apocalyptic number.

90223745607 is a deficient number, since it is larger than the sum of its proper divisors (43621691313).

90223745607 is a wasteful number, since it uses less digits than its factorization.

90223745607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270942222 (or 270942219 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 90223745607 in words is "ninety billion, two hundred twenty-three million, seven hundred forty-five thousand, six hundred seven".