8000999975 has 6 divisors (see below), whose sum is σ = 9921240000. Its totient is φ = 6400799960.

The previous prime is 8000999879. The next prime is 8001000001. The reversal of 8000999975 is 5799990008.

It is a de Polignac number, because none of the positive numbers 2^k-8000999975 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8000999975.

It is a congruent number.

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, 160019975 + ... + 160020024.

It is an arithmetic number, because the mean of its divisors is an integer number (1653540000).

Almost surely, 2^8000999975 is an apocalyptic number.

8000999975 is a deficient number, since it is larger than the sum of its proper divisors (1920240025).

8000999975 is a wasteful number, since it uses less digits than its factorization.

8000999975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320040009 (or 320040004 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 56.

The square root of 8000999975 is about 89448.3089555079. The cubic root of 8000999975 is about 2000.0833277782.

The spelling of 8000999975 in words is "eight billion, nine hundred ninety-nine thousand, nine hundred seventy-five".