8190090090 has 128 divisors (see below), whose sum is σ = 26880376320. Its totient is φ = 1728013824.

The previous prime is 8190090089. The next prime is 8190090109. The reversal of 8190090090 is 900900918.

8190090090 is a modest number, since divided by 90090 gives 8190 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142099 + ... + 191238.

It is an arithmetic number, because the mean of its divisors is an integer number (210002940).

Almost surely, 2^8190090090 is an apocalyptic number.

8190090090 is an abundant number, since it is smaller than the sum of its proper divisors (18690286230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8190090090 is a wasteful number, since it uses less digits than its factorization.

8190090090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333373 (or 333367 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 8190090090 is about 90499.1165150246. The cubic root of 8190090090 is about 2015.7170051675.

The spelling of 8190090090 in words is "eight billion, one hundred ninety million, ninety thousand, ninety".