2139273071673 has 4 divisors (see below), whose sum is σ = 2852364095568. Its totient is φ = 1426182047780.

The previous prime is 2139273071671. The next prime is 2139273071681. The reversal of 2139273071673 is 3761703729312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2139273071673 - 2¹ = 2139273071671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2139273071671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356545511943 + ... + 356545511948.

It is an arithmetic number, because the mean of its divisors is an integer number (713091023892).

Almost surely, 2^{2139273071673} is an apocalyptic number.

It is an amenable number.

2139273071673 is a deficient number, since it is larger than the sum of its proper divisors (713091023895).

2139273071673 is an equidigital number, since it uses as much as digits as its factorization.

2139273071673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713091023894.

The product of its (nonzero) digits is 2000376, while the sum is 51.

The spelling of 2139273071673 in words is "two trillion, one hundred thirty-nine billion, two hundred seventy-three million, seventy-one thousand, six hundred seventy-three".