6401098188 has 18 divisors (see below), whose sum is σ = 16180553844. Its totient is φ = 2133699384.

The previous prime is 6401098177. The next prime is 6401098199. The reversal of 6401098188 is 8818901046.

It is an interprime number because it is at equal distance from previous prime (6401098177) and next prime (6401098199).

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88904106 + ... + 88904177.

It is an arithmetic number, because the mean of its divisors is an integer number (898919658).

Almost surely, 2^6401098188 is an apocalyptic number.

It is an amenable number.

6401098188 is an abundant number, since it is smaller than the sum of its proper divisors (9779455656).

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

6401098188 is a wasteful number, since it uses less digits than its factorization.

6401098188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177808293 (or 177808288 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 6401098188 is about 80006.8633805875. The cubic root of 6401098188 is about 1856.7417218958.

The spelling of 6401098188 in words is "six billion, four hundred one million, ninety-eight thousand, one hundred eighty-eight".