998970479976 has 64 divisors (see below), whose sum is σ = 2854831265280. Its totient is φ = 285357147840.

The previous prime is 998970479911. The next prime is 998970479989. The reversal of 998970479976 is 679974079899.

It is a Harshad number since it is a multiple of its sum of digits (84).

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, 110031 + ... + 1417761.

It is an arithmetic number, because the mean of its divisors is an integer number (44606738520).

Almost surely, 2^998970479976 is an apocalyptic number.

It is an amenable number.

998970479976 is an abundant number, since it is smaller than the sum of its proper divisors (1855860785304).

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

998970479976 is a wasteful number, since it uses less digits than its factorization.

998970479976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312294 (or 1312290 counting only the distinct ones).

The product of its (nonzero) digits is 3888730944, while the sum is 84.

The spelling of 998970479976 in words is "nine hundred ninety-eight billion, nine hundred seventy million, four hundred seventy-nine thousand, nine hundred seventy-six".