90574918016878 has 16 divisors (see below), whose sum is σ = 144536055413904. Its totient is φ = 42421483762560.

The previous prime is 90574918016839. The next prime is 90574918016887. The reversal of 90574918016878 is 87861081947509.

It is a self number, because there is not a number n which added to its sum of digits gives 90574918016878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6312713625 + ... + 6312727972.

It is an arithmetic number, because the mean of its divisors is an integer number (9033503463369).

Almost surely, 2^{90574918016878} is an apocalyptic number.

90574918016878 is a deficient number, since it is larger than the sum of its proper divisors (53961137397026).

90574918016878 is a wasteful number, since it uses less digits than its factorization.

90574918016878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12625441827.

The product of its (nonzero) digits is 243855360, while the sum is 73.

The spelling of 90574918016878 in words is "ninety trillion, five hundred seventy-four billion, nine hundred eighteen million, sixteen thousand, eight hundred seventy-eight".