2139689914 has 16 divisors (see below), whose sum is σ = 3244131648. Its totient is φ = 1058341312.

The previous prime is 2139689879. The next prime is 2139689927. The reversal of 2139689914 is 4199869312.

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, 152274 + ... + 165730.

It is an arithmetic number, because the mean of its divisors is an integer number (202758228).

Almost surely, 2^2139689914 is an apocalyptic number.

2139689914 is a deficient number, since it is larger than the sum of its proper divisors (1104441734).

2139689914 is a wasteful number, since it uses less digits than its factorization.

2139689914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14309.

The product of its digits is 839808, while the sum is 52.

The square root of 2139689914 is about 46256.7823567528. The cubic root of 2139689914 is about 1288.5964973183.

The spelling of 2139689914 in words is "two billion, one hundred thirty-nine million, six hundred eighty-nine thousand, nine hundred fourteen".