6251599998 has 96 divisors (see below), whose sum is σ = 15778264320. Its totient is φ = 1751915520.

The previous prime is 6251599987. The next prime is 6251600041. The reversal of 6251599998 is 8999951526.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5136286 + ... + 5137502.

It is an arithmetic number, because the mean of its divisors is an integer number (164356920).

Almost surely, 2^6251599998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6251599998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7889132160).

6251599998 is an abundant number, since it is smaller than the sum of its proper divisors (9526664322).

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

6251599998 is a wasteful number, since it uses less digits than its factorization.

6251599998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982 (or 1979 counting only the distinct ones).

The product of its digits is 15746400, while the sum is 63.

The square root of 6251599998 is about 79067.0601325229. The cubic root of 6251599998 is about 1842.1729210564.

The spelling of 6251599998 in words is "six billion, two hundred fifty-one million, five hundred ninety-nine thousand, nine hundred ninety-eight".