90478584058868 has 48 divisors (see below), whose sum is σ = 161181019298880. Its totient is φ = 44433261007104.

The previous prime is 90478584058867. The next prime is 90478584058871. The reversal of 90478584058868 is 86885048587409.

It is a junction number, because it is equal to n+sod(n) for n = 90478584058792 and 90478584058801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90478584058867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1271999528 + ... + 1272070656.

It is an arithmetic number, because the mean of its divisors is an integer number (3357937902060).

Almost surely, 2^{90478584058868} is an apocalyptic number.

It is an amenable number.

90478584058868 is a deficient number, since it is larger than the sum of its proper divisors (70702435240012).

90478584058868 is a wasteful number, since it uses less digits than its factorization.

90478584058868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93536 (or 93534 counting only the distinct ones).

The product of its (nonzero) digits is 4954521600, while the sum is 80.

The spelling of 90478584058868 in words is "ninety trillion, four hundred seventy-eight billion, five hundred eighty-four million, fifty-eight thousand, eight hundred sixty-eight".