990027517170 has 32 divisors (see below), whose sum is σ = 2501122150080. Its totient is φ = 250112214720.

The previous prime is 990027517163. The next prime is 990027517177. The reversal of 990027517170 is 71715720099.

It is an interprime number because it is at equal distance from previous prime (990027517163) and next prime (990027517177).

It is not an unprimeable number, because it can be changed into a prime (990027517177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868444621 + ... + 868445760.

It is an arithmetic number, because the mean of its divisors is an integer number (78160067190).

Almost surely, 2^990027517170 is an apocalyptic number.

990027517170 is an abundant number, since it is smaller than the sum of its proper divisors (1511094632910).

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

990027517170 is a wasteful number, since it uses less digits than its factorization.

990027517170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736890410.

The product of its (nonzero) digits is 277830, while the sum is 48.

The spelling of 990027517170 in words is "nine hundred ninety billion, twenty-seven million, five hundred seventeen thousand, one hundred seventy".