2139498718 has 16 divisors (see below), whose sum is σ = 3671777664. Its totient is φ = 915911640.

The previous prime is 2139498707. The next prime is 2139498731. The reversal of 2139498718 is 8178949312.

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, 71548 + ... + 96943.

It is an arithmetic number, because the mean of its divisors is an integer number (229486104).

Almost surely, 2^2139498718 is an apocalyptic number.

2139498718 is a deficient number, since it is larger than the sum of its proper divisors (1532278946).

2139498718 is a wasteful number, since it uses less digits than its factorization.

2139498718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169407.

The product of its digits is 870912, while the sum is 52.

The square root of 2139498718 is about 46254.7156298685. The cubic root of 2139498718 is about 1288.5581145238.

The spelling of 2139498718 in words is "two billion, one hundred thirty-nine million, four hundred ninety-eight thousand, seven hundred eighteen".