2138517716 has 24 divisors (see below), whose sum is σ = 3942120000. Its totient is φ = 1012276224.

The previous prime is 2138517709. The next prime is 2138517757. The reversal of 2138517716 is 6177158312.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 109460 + ... + 127508.

It is an arithmetic number, because the mean of its divisors is an integer number (164255000).

Almost surely, 2^2138517716 is an apocalyptic number.

It is an amenable number.

2138517716 is a deficient number, since it is larger than the sum of its proper divisors (1803602284).

2138517716 is a wasteful number, since it uses less digits than its factorization.

2138517716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19631 (or 19629 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 2138517716 is about 46244.1100682022. The cubic root of 2138517716 is about 1288.3611413843.

The spelling of 2138517716 in words is "two billion, one hundred thirty-eight million, five hundred seventeen thousand, seven hundred sixteen".