190140988490 has 32 divisors (see below), whose sum is σ = 354107410560. Its totient is φ = 73423022400.

The previous prime is 190140988487. The next prime is 190140988507. The reversal of 190140988490 is 94889041091.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2104955 + ... + 2193425.

It is an arithmetic number, because the mean of its divisors is an integer number (11065856580).

Almost surely, 2^190140988490 is an apocalyptic number.

190140988490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190140988490 is a deficient number, since it is larger than the sum of its proper divisors (163966422070).

190140988490 is a wasteful number, since it uses less digits than its factorization.

190140988490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95918.

The product of its (nonzero) digits is 746496, while the sum is 53.

The spelling of 190140988490 in words is "one hundred ninety billion, one hundred forty million, nine hundred eighty-eight thousand, four hundred ninety".