6667788375 has 40 divisors (see below), whose sum is σ = 12430752048. Its totient is φ = 3556148400.

The previous prime is 6667788371. The next prime is 6667788403. The reversal of 6667788375 is 5738877666.

It is not a de Polignac number, because 6667788375 - 2² = 6667788371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6667788371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 319149 + ... + 339398.

Almost surely, 2^6667788375 is an apocalyptic number.

6667788375 is a deficient number, since it is larger than the sum of its proper divisors (5762963673).

6667788375 is an equidigital number, since it uses as much as digits as its factorization.

6667788375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658574 (or 658555 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 63.

The square root of 6667788375 is about 81656.5268364997. The cubic root of 6667788375 is about 1882.1776086380.

The spelling of 6667788375 in words is "six billion, six hundred sixty-seven million, seven hundred eighty-eight thousand, three hundred seventy-five".