90126957628 has 6 divisors (see below), whose sum is σ = 157722175856. Its totient is φ = 45063478812.

The previous prime is 90126957623. The next prime is 90126957647. The reversal of 90126957628 is 82675962109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90126957623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11265869700 + ... + 11265869707.

Almost surely, 2^90126957628 is an apocalyptic number.

It is an amenable number.

90126957628 is a deficient number, since it is larger than the sum of its proper divisors (67595218228).

90126957628 is a wasteful number, since it uses less digits than its factorization.

90126957628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22531739411 (or 22531739409 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 90126957628 in words is "ninety billion, one hundred twenty-six million, nine hundred fifty-seven thousand, six hundred twenty-eight".