90894981098 has 16 divisors (see below), whose sum is σ = 144432502920. Its totient is φ = 42753401856.

The previous prime is 90894981017. The next prime is 90894981109. The reversal of 90894981098 is 89018949809.

It can be written as a sum of positive squares in 4 ways, for example, as 49879415569 + 41015565529 = 223337^2 + 202523^2 .

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, 575711 + ... + 716402.

Almost surely, 2^90894981098 is an apocalyptic number.

90894981098 is a deficient number, since it is larger than the sum of its proper divisors (53537521822).

90894981098 is a wasteful number, since it uses less digits than its factorization.

90894981098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294201.

The product of its (nonzero) digits is 13436928, while the sum is 65.

The spelling of 90894981098 in words is "ninety billion, eight hundred ninety-four million, nine hundred eighty-one thousand, ninety-eight".