990279153071 has 12 divisors (see below), whose sum is σ = 1072383203232. Its totient is φ = 914044936896.

The previous prime is 990279153067. The next prime is 990279153109. The reversal of 990279153071 is 170351972099.

It is not a de Polignac number, because 990279153071 - 2² = 990279153067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990279153041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2560010 + ... + 2921336.

It is an arithmetic number, because the mean of its divisors is an integer number (89365266936).

Almost surely, 2^990279153071 is an apocalyptic number.

990279153071 is a deficient number, since it is larger than the sum of its proper divisors (82104050161).

990279153071 is a wasteful number, since it uses less digits than its factorization.

990279153071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377570 (or 377557 counting only the distinct ones).

The product of its (nonzero) digits is 1071630, while the sum is 53.

The spelling of 990279153071 in words is "nine hundred ninety billion, two hundred seventy-nine million, one hundred fifty-three thousand, seventy-one".