6787664475 has 24 divisors (see below), whose sum is σ = 11389776960. Its totient is φ = 3566053920.

The previous prime is 6787664453. The next prime is 6787664483. The reversal of 6787664475 is 5744667876.

It is a happy number.

6787664475 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6787664475 - 2⁷ = 6787664347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670365 + ... + 680414.

It is an arithmetic number, because the mean of its divisors is an integer number (474574040).

Almost surely, 2^6787664475 is an apocalyptic number.

6787664475 is a deficient number, since it is larger than the sum of its proper divisors (4602112485).

6787664475 is a wasteful number, since it uses less digits than its factorization.

6787664475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350859 (or 1350854 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 60.

The square root of 6787664475 is about 82387.2834544264. The cubic root of 6787664475 is about 1893.3901877151.

The spelling of 6787664475 in words is "six billion, seven hundred eighty-seven million, six hundred sixty-four thousand, four hundred seventy-five".