851868995 has 8 divisors (see below), whose sum is σ = 1055218560. Its totient is φ = 659511360.

The previous prime is 851868967. The next prime is 851869037. The reversal of 851868995 is 599868158.

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

It is not a de Polignac number, because 851868995 - 2⁸ = 851868739 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2747810 + ... + 2748119.

It is an arithmetic number, because the mean of its divisors is an integer number (131902320).

Almost surely, 2^851868995 is an apocalyptic number.

851868995 is a deficient number, since it is larger than the sum of its proper divisors (203349565).

851868995 is a wasteful number, since it uses less digits than its factorization.

851868995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495965.

The product of its digits is 6220800, while the sum is 59.

The square root of 851868995 is about 29186.7948737096. The cubic root of 851868995 is about 947.9620189730.

The spelling of 851868995 in words is "eight hundred fifty-one million, eight hundred sixty-eight thousand, nine hundred ninety-five".