6929408985 has 16 divisors (see below), whose sum is σ = 11100545664. Its totient is φ = 3691187712.

The previous prime is 6929408963. The next prime is 6929409001. The reversal of 6929408985 is 5898049296.

It is not a de Polignac number, because 6929408985 - 2⁶ = 6929408921 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268312 + ... + 293001.

It is an arithmetic number, because the mean of its divisors is an integer number (693784104).

Almost surely, 2^6929408985 is an apocalyptic number.

It is an amenable number.

6929408985 is a deficient number, since it is larger than the sum of its proper divisors (4171136679).

6929408985 is a wasteful number, since it uses less digits than its factorization.

6929408985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562144.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The square root of 6929408985 is about 83243.0716936851. The cubic root of 6929408985 is about 1906.4791716450.

The spelling of 6929408985 in words is "six billion, nine hundred twenty-nine million, four hundred eight thousand, nine hundred eighty-five".