90723844520788 has 12 divisors (see below), whose sum is σ = 158767379243200. Its totient is φ = 45361736165592.

The previous prime is 90723844520711. The next prime is 90723844520791. The reversal of 90723844520788 is 88702544832709.

It is a super-2 number, since 2×90723844520788² (a number of 29 digits) contains 22 as substring.

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, 45423906 + ... + 47379097.

Almost surely, 2^{90723844520788} is an apocalyptic number.

It is an amenable number.

90723844520788 is a deficient number, since it is larger than the sum of its proper divisors (68043534722412).

90723844520788 is a wasteful number, since it uses less digits than its factorization.

90723844520788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93047406 (or 93047404 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 67.

The spelling of 90723844520788 in words is "ninety trillion, seven hundred twenty-three billion, eight hundred forty-four million, five hundred twenty thousand, seven hundred eighty-eight".