851672799 has 10 divisors (see below), whose sum is σ = 1272252080. Its totient is φ = 567781812.

The previous prime is 851672753. The next prime is 851672849. The reversal of 851672799 is 997276158.

It is not a de Polignac number, because 851672799 - 2¹⁷ = 851541727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851672099) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5257159 + ... + 5257320.

It is an arithmetic number, because the mean of its divisors is an integer number (127225208).

Almost surely, 2^851672799 is an apocalyptic number.

851672799 is a deficient number, since it is larger than the sum of its proper divisors (420579281).

851672799 is a wasteful number, since it uses less digits than its factorization.

851672799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514491 (or 10514482 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 851672799 is about 29183.4336396525. The cubic root of 851672799 is about 947.8892375800.

The spelling of 851672799 in words is "eight hundred fifty-one million, six hundred seventy-two thousand, seven hundred ninety-nine".