851608652 has 24 divisors (see below), whose sum is σ = 1570329600. Its totient is φ = 402988176.

The previous prime is 851608643. The next prime is 851608661. The reversal of 851608652 is 256806158.

It is an interprime number because it is at equal distance from previous prime (851608643) and next prime (851608661).

It is a super-2 number, since 2×851608652² = 1450474592322514208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78749 + ... + 88907.

It is an arithmetic number, because the mean of its divisors is an integer number (65430400).

Almost surely, 2^851608652 is an apocalyptic number.

It is an amenable number.

851608652 is a deficient number, since it is larger than the sum of its proper divisors (718720948).

851608652 is a wasteful number, since it uses less digits than its factorization.

851608652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11285 (or 11283 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 851608652 is about 29182.3345878975. The cubic root of 851608652 is about 947.8654390126.

The spelling of 851608652 in words is "eight hundred fifty-one million, six hundred eight thousand, six hundred fifty-two".