6970139918 has 16 divisors (see below), whose sum is σ = 11949932544. Its totient is φ = 2986922520.

The previous prime is 6970139899. The next prime is 6970139941. The reversal of 6970139918 is 8199310796.

It is a self number, because there is not a number n which added to its sum of digits gives 6970139918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215123 + ... + 245393.

It is an arithmetic number, because the mean of its divisors is an integer number (746870784).

Almost surely, 2^6970139918 is an apocalyptic number.

6970139918 is a deficient number, since it is larger than the sum of its proper divisors (4979792626).

6970139918 is a wasteful number, since it uses less digits than its factorization.

6970139918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46727.

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 6970139918 is about 83487.3638223174. The cubic root of 6970139918 is about 1910.2072925424.

The spelling of 6970139918 in words is "six billion, nine hundred seventy million, one hundred thirty-nine thousand, nine hundred eighteen".