999879000190 has 32 divisors (see below), whose sum is σ = 2056928852160. Its totient is φ = 342809839104.

The previous prime is 999879000187. The next prime is 999879000199. The reversal of 999879000190 is 91000978999.

It is a super-2 number, since 2×999879000190² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999879000199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6999924 + ... + 7141336.

It is an arithmetic number, because the mean of its divisors is an integer number (64279026630).

Almost surely, 2^999879000190 is an apocalyptic number.

999879000190 is an abundant number, since it is smaller than the sum of its proper divisors (1057049851970).

999879000190 is a wasteful number, since it uses less digits than its factorization.

999879000190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242436.

The product of its (nonzero) digits is 3306744, while the sum is 61.

The spelling of 999879000190 in words is "nine hundred ninety-nine billion, eight hundred seventy-nine million, one hundred ninety", and thus it is an aban number.