90842657918 has 16 divisors (see below), whose sum is σ = 143444994000. Its totient is φ = 43027967232.

The previous prime is 90842657887. The next prime is 90842657929. The reversal of 90842657918 is 81975624809.

It is a Curzon number.

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, 599588 + ... + 735656.

It is an arithmetic number, because the mean of its divisors is an integer number (8965312125).

Almost surely, 2^90842657918 is an apocalyptic number.

90842657918 is a deficient number, since it is larger than the sum of its proper divisors (52602336082).

90842657918 is a wasteful number, since it uses less digits than its factorization.

90842657918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153659.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 90842657918 in words is "ninety billion, eight hundred forty-two million, six hundred fifty-seven thousand, nine hundred eighteen".