7855673388 has 12 divisors (see below), whose sum is σ = 18329904600. Its totient is φ = 2618557792.

The previous prime is 7855673369. The next prime is 7855673393. The reversal of 7855673388 is 8833765587.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327319713 + ... + 327319736.

It is an arithmetic number, because the mean of its divisors is an integer number (1527492050).

Almost surely, 2^7855673388 is an apocalyptic number.

It is an amenable number.

7855673388 is an abundant number, since it is smaller than the sum of its proper divisors (10474231212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7855673388 is a wasteful number, since it uses less digits than its factorization.

7855673388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654639456 (or 654639454 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 60.

The square root of 7855673388 is about 88632.2367313383. The cubic root of 7855673388 is about 1987.8997216050.

The spelling of 7855673388 in words is "seven billion, eight hundred fifty-five million, six hundred seventy-three thousand, three hundred eighty-eight".