6418901898 has 24 divisors (see below), whose sum is σ = 14639601600. Its totient is φ = 2027021544.

The previous prime is 6418901849. The next prime is 6418901947. The reversal of 6418901898 is 8981098146.

It is an interprime number because it is at equal distance from previous prime (6418901849) and next prime (6418901947).

It is a super-2 number, since 2×6418901898² = 82404603152296004808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9384018 + ... + 9384701.

It is an arithmetic number, because the mean of its divisors is an integer number (609983400).

Almost surely, 2^6418901898 is an apocalyptic number.

6418901898 is an abundant number, since it is smaller than the sum of its proper divisors (8220699702).

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

6418901898 is a wasteful number, since it uses less digits than its factorization.

6418901898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18768746 (or 18768743 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The square root of 6418901898 is about 80118.0497640825. The cubic root of 6418901898 is about 1858.4615461009.

The spelling of 6418901898 in words is "six billion, four hundred eighteen million, nine hundred one thousand, eight hundred ninety-eight".