90742260050 has 162 divisors, whose sum is σ = 190971781767. Its totient is φ = 32063216640.

The previous prime is 90742260023. The next prime is 90742260061. The reversal of 90742260050 is 5006224709.

It can be written as a sum of positive squares in 41 ways, for example, as 78569771809 + 12172488241 = 280303^2 + 110329^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=213005.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 803028794 + ... + 803028906.

Almost surely, 2^90742260050 is an apocalyptic number.

90742260050 is an abundant number, since it is smaller than the sum of its proper divisors (100229521717).

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

90742260050 is a wasteful number, since it uses less digits than its factorization.

90742260050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 90742260050 its reverse (5006224709), we get a palindrome (95748484759).

The spelling of 90742260050 in words is "ninety billion, seven hundred forty-two million, two hundred sixty thousand, fifty".