6946179138 has 20 divisors (see below), whose sum is σ = 15564586950. Its totient is φ = 2315392992.

The previous prime is 6946179131. The next prime is 6946179161. The reversal of 6946179138 is 8319716496.

6946179138 is a `hidden beast` number, since 6 + 9 + 4 + 617 + 9 + 13 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6254120889 + 692058249 = 79083^2 + 26307^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6946179131) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 21438663 + ... + 21438986.

Almost surely, 2^6946179138 is an apocalyptic number.

6946179138 is an abundant number, since it is smaller than the sum of its proper divisors (8618407812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6946179138 is a wasteful number, since it uses less digits than its factorization.

6946179138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42877663 (or 42877654 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 6946179138 is about 83343.7408447689. The cubic root of 6946179138 is about 1908.0159159702.

The spelling of 6946179138 in words is "six billion, nine hundred forty-six million, one hundred seventy-nine thousand, one hundred thirty-eight".