2137780297918 has 8 divisors (see below), whose sum is σ = 3375442575720. Its totient is φ = 1012632772680.

The previous prime is 2137780297909. The next prime is 2137780297973. The reversal of 2137780297918 is 8197920877312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2137780297918.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28128688093 + ... + 28128688168.

It is an arithmetic number, because the mean of its divisors is an integer number (421930321965).

Almost surely, 2^{2137780297918} is an apocalyptic number.

2137780297918 is a deficient number, since it is larger than the sum of its proper divisors (1237662277802).

2137780297918 is a wasteful number, since it uses less digits than its factorization.

2137780297918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56257376282.

The product of its (nonzero) digits is 21337344, while the sum is 64.

The spelling of 2137780297918 in words is "two trillion, one hundred thirty-seven billion, seven hundred eighty million, two hundred ninety-seven thousand, nine hundred eighteen".