6949378964 has 36 divisors (see below), whose sum is σ = 13395406752. Its totient is φ = 3152215440.

The previous prime is 6949378937. The next prime is 6949379083. The reversal of 6949378964 is 4698739496.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6949378964.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220967 + ... + 250449.

It is an arithmetic number, because the mean of its divisors is an integer number (372094632).

Almost surely, 2^6949378964 is an apocalyptic number.

It is an amenable number.

6949378964 is a deficient number, since it is larger than the sum of its proper divisors (6446027788).

6949378964 is a wasteful number, since it uses less digits than its factorization.

6949378964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29996 (or 29983 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 65.

The square root of 6949378964 is about 83362.9351930461. The cubic root of 6949378964 is about 1908.3088531166.

The spelling of 6949378964 in words is "six billion, nine hundred forty-nine million, three hundred seventy-eight thousand, nine hundred sixty-four".