7850868855 has 64 divisors (see below), whose sum is σ = 13503283200. Its totient is φ = 3881170944.

The previous prime is 7850868841. The next prime is 7850868871. The reversal of 7850868855 is 5588680587.

It is not a de Polignac number, because 7850868855 - 2¹³ = 7850860663 is a prime.

It is a super-2 number, since 2×7850868855² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4824552 + ... + 4826178.

It is an arithmetic number, because the mean of its divisors is an integer number (210988800).

Almost surely, 2^7850868855 is an apocalyptic number.

7850868855 is a deficient number, since it is larger than the sum of its proper divisors (5652414345).

7850868855 is a wasteful number, since it uses less digits than its factorization.

7850868855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928.

The product of its (nonzero) digits is 21504000, while the sum is 60.

The square root of 7850868855 is about 88605.1288301078. The cubic root of 7850868855 is about 1987.4943722004.

The spelling of 7850868855 in words is "seven billion, eight hundred fifty million, eight hundred sixty-eight thousand, eight hundred fifty-five".