90742554008 has 16 divisors (see below), whose sum is σ = 170165211000. Its totient is φ = 45365164416.

The previous prime is 90742553953. The next prime is 90742554013. The reversal of 90742554008 is 80045524709.

It is a happy number.

It is a super-2 number, since 2×90742554008² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90742554008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700673 + ... + 820016.

Almost surely, 2^90742554008 is an apocalyptic number.

It is an amenable number.

90742554008 is a deficient number, since it is larger than the sum of its proper divisors (79422656992).

90742554008 is a wasteful number, since it uses less digits than its factorization.

90742554008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528154 (or 1528150 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 90742554008 in words is "ninety billion, seven hundred forty-two million, five hundred fifty-four thousand, eight".