2138683703765 has 128 divisors (see below), whose sum is σ = 3119750000640. Its totient is φ = 1377198028800.

The previous prime is 2138683703713. The next prime is 2138683703791. The reversal of 2138683703765 is 5673073868312.

It is not a de Polignac number, because 2138683703765 - 2¹⁴ = 2138683687381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1026731414 + ... + 1026733496.

It is an arithmetic number, because the mean of its divisors is an integer number (24373046880).

Almost surely, 2^{2138683703765} is an apocalyptic number.

It is an amenable number.

2138683703765 is a deficient number, since it is larger than the sum of its proper divisors (981066296875).

2138683703765 is a wasteful number, since it uses less digits than its factorization.

2138683703765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 2138683703765 in words is "two trillion, one hundred thirty-eight billion, six hundred eighty-three million, seven hundred three thousand, seven hundred sixty-five".