6942631977 has 24 divisors (see below), whose sum is σ = 10654731360. Its totient is φ = 4343829120.

The previous prime is 6942631963. The next prime is 6942631981. The reversal of 6942631977 is 7791362496.

It is a happy number.

It is not a de Polignac number, because 6942631977 - 2⁷ = 6942631849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6942631477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171424 + ... + 208017.

It is an arithmetic number, because the mean of its divisors is an integer number (443947140).

Almost surely, 2^6942631977 is an apocalyptic number.

It is an amenable number.

6942631977 is a deficient number, since it is larger than the sum of its proper divisors (3712099383).

6942631977 is a wasteful number, since it uses less digits than its factorization.

6942631977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379573 (or 379570 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 6942631977 is about 83322.4578190058. The cubic root of 6942631977 is about 1907.6910758962.

The spelling of 6942631977 in words is "six billion, nine hundred forty-two million, six hundred thirty-one thousand, nine hundred seventy-seven".