6939209377 has 8 divisors (see below), whose sum is σ = 7012527200. Its totient is φ = 6865928064.

The previous prime is 6939209359. The next prime is 6939209383. The reversal of 6939209377 is 7739029396.

6939209377 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6939209377 - 2²⁷ = 6804991649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6939209677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554374 + ... + 566752.

It is an arithmetic number, because the mean of its divisors is an integer number (876565900).

Almost surely, 2^6939209377 is an apocalyptic number.

It is an amenable number.

6939209377 is a deficient number, since it is larger than the sum of its proper divisors (73317823).

6939209377 is a wasteful number, since it uses less digits than its factorization.

6939209377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18255.

The product of its (nonzero) digits is 3857868, while the sum is 55.

The square root of 6939209377 is about 83301.9170067532. The cubic root of 6939209377 is about 1907.3775379023.

The spelling of 6939209377 in words is "six billion, nine hundred thirty-nine million, two hundred nine thousand, three hundred seventy-seven".