90730156912 has 40 divisors (see below), whose sum is σ = 176361337152. Its totient is φ = 45217689600.

The previous prime is 90730156897. The next prime is 90730156927. The reversal of 90730156912 is 21965103709.

It is an interprime number because it is at equal distance from previous prime (90730156897) and next prime (90730156927).

It is a super-2 number, since 2×90730156912² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17854212 + ... + 17859292.

Almost surely, 2^90730156912 is an apocalyptic number.

It is an amenable number.

90730156912 is a deficient number, since it is larger than the sum of its proper divisors (85631180240).

90730156912 is a wasteful number, since it uses less digits than its factorization.

90730156912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8497 (or 8491 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The spelling of 90730156912 in words is "ninety billion, seven hundred thirty million, one hundred fifty-six thousand, nine hundred twelve".