90028977194 has 16 divisors (see below), whose sum is σ = 145850550048. Its totient is φ = 41432085552.

The previous prime is 90028977169. The next prime is 90028977209. The reversal of 90028977194 is 49177982009.

It is a super-2 number, since 2×90028977194² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4980392 + ... + 4998435.

It is an arithmetic number, because the mean of its divisors is an integer number (9115659378).

Almost surely, 2^90028977194 is an apocalyptic number.

90028977194 is a deficient number, since it is larger than the sum of its proper divisors (55821572854).

90028977194 is a wasteful number, since it uses less digits than its factorization.

90028977194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9979189.

The product of its (nonzero) digits is 2286144, while the sum is 56.

The spelling of 90028977194 in words is "ninety billion, twenty-eight million, nine hundred seventy-seven thousand, one hundred ninety-four".