90063788446 has 24 divisors (see below), whose sum is σ = 138311217000. Its totient is φ = 43984367952.

The previous prime is 90063788387. The next prime is 90063788459. The reversal of 90063788446 is 64488736009.

It is a super-2 number, since 2×90063788446² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 2184156 + ... + 2225008.

It is an arithmetic number, because the mean of its divisors is an integer number (5762967375).

Almost surely, 2^90063788446 is an apocalyptic number.

90063788446 is a deficient number, since it is larger than the sum of its proper divisors (48247428554).

90063788446 is a wasteful number, since it uses less digits than its factorization.

90063788446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41448 (or 41401 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 90063788446 in words is "ninety billion, sixty-three million, seven hundred eighty-eight thousand, four hundred forty-six".