2138703873 has 8 divisors (see below), whose sum is σ = 2855056608. Its totient is φ = 1424076864.

The previous prime is 2138703841. The next prime is 2138703883. The reversal of 2138703873 is 3783078312.

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

It is not a de Polignac number, because 2138703873 - 2⁵ = 2138703841 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2138703823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428536 + ... + 433497.

It is an arithmetic number, because the mean of its divisors is an integer number (356882076).

Almost surely, 2^2138703873 is an apocalyptic number.

It is an amenable number.

2138703873 is a deficient number, since it is larger than the sum of its proper divisors (716352735).

2138703873 is an equidigital number, since it uses as much as digits as its factorization.

2138703873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862863.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 2138703873 is about 46246.1227888350. The cubic root of 2138703873 is about 1288.3985240512.

The spelling of 2138703873 in words is "two billion, one hundred thirty-eight million, seven hundred three thousand, eight hundred seventy-three".