6718120929 has 12 divisors (see below), whose sum is σ = 10450410516. Its totient is φ = 4134228192.

The previous prime is 6718120907. The next prime is 6718120931. The reversal of 6718120929 is 9290218176.

It can be written as a sum of positive squares in 2 ways, for example, as 1656083025 + 5062037904 = 40695^2 + 71148^2 .

It is not a de Polignac number, because 6718120929 - 2⁵ = 6718120897 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6718121929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28709802 + ... + 28710035.

It is an arithmetic number, because the mean of its divisors is an integer number (870867543).

Almost surely, 2^6718120929 is an apocalyptic number.

It is an amenable number.

6718120929 is a deficient number, since it is larger than the sum of its proper divisors (3732289587).

6718120929 is a wasteful number, since it uses less digits than its factorization.

6718120929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57419856 (or 57419853 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 6718120929 is about 81964.1441668246. The cubic root of 6718120929 is about 1886.9016852149.

The spelling of 6718120929 in words is "six billion, seven hundred eighteen million, one hundred twenty thousand, nine hundred twenty-nine".