6139069905 has 16 divisors (see below), whose sum is σ = 9824241024. Its totient is φ = 3273594240.

The previous prime is 6139069897. The next prime is 6139069919. The reversal of 6139069905 is 5099609316.

It is not a de Polignac number, because 6139069905 - 2³ = 6139069897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60340 + ... + 126170.

It is an arithmetic number, because the mean of its divisors is an integer number (614015064).

Almost surely, 2^6139069905 is an apocalyptic number.

It is an amenable number.

6139069905 is a deficient number, since it is larger than the sum of its proper divisors (3685171119).

6139069905 is a wasteful number, since it uses less digits than its factorization.

6139069905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72056.

The product of its (nonzero) digits is 393660, while the sum is 48.

The square root of 6139069905 is about 78352.2169756542. The cubic root of 6139069905 is about 1831.0527655034.

The spelling of 6139069905 in words is "six billion, one hundred thirty-nine million, sixty-nine thousand, nine hundred five".