6475998980 has 96 divisors (see below), whose sum is σ = 15164755200. Its totient is φ = 2303009280.

The previous prime is 6475998973. The next prime is 6475999001. The reversal of 6475998980 is 898995746.

It is a super-2 number, since 2×6475998980² = 83877125577922080800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4628321 + ... + 4629719.

It is an arithmetic number, because the mean of its divisors is an integer number (157966200).

Almost surely, 2^6475998980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6475998980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7582377600).

6475998980 is an abundant number, since it is smaller than the sum of its proper divisors (8688756220).

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

6475998980 is a wasteful number, since it uses less digits than its factorization.

6475998980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 65.

The square root of 6475998980 is about 80473.5918174403. The cubic root of 6475998980 is about 1863.9557178014.

The spelling of 6475998980 in words is "six billion, four hundred seventy-five million, nine hundred ninety-eight thousand, nine hundred eighty".