7899908851 has 8 divisors (see below), whose sum is σ = 7947313920. Its totient is φ = 7852540488.

The previous prime is 7899908843. The next prime is 7899908867. The reversal of 7899908851 is 1588099987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7899908851 - 2³ = 7899908843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7899908801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509130 + ... + 524416.

It is an arithmetic number, because the mean of its divisors is an integer number (993414240).

Almost surely, 2^7899908851 is an apocalyptic number.

7899908851 is a deficient number, since it is larger than the sum of its proper divisors (47405069).

7899908851 is a wasteful number, since it uses less digits than its factorization.

7899908851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18353.

The product of its (nonzero) digits is 13063680, while the sum is 64.

The square root of 7899908851 is about 88881.4314184915. The cubic root of 7899908851 is about 1991.6240415458.

The spelling of 7899908851 in words is "seven billion, eight hundred ninety-nine million, nine hundred eight thousand, eight hundred fifty-one".