2072438791 has 2 divisors, whose sum is σ = 2072438792. Its totient is φ = 2072438790.

The previous prime is 2072438773. The next prime is 2072438843. The reversal of 2072438791 is 1978342702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2072438791 - 2⁹ = 2072438279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2072438891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1036219395 + 1036219396.

It is an arithmetic number, because the mean of its divisors is an integer number (1036219396).

Almost surely, 2^2072438791 is an apocalyptic number.

2072438791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2072438791 is an equidigital number, since it uses as much as digits as its factorization.

2072438791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 2072438791 is about 45524.0462942388. The cubic root of 2072438791 is about 1274.9522044880.

The spelling of 2072438791 in words is "two billion, seventy-two million, four hundred thirty-eight thousand, seven hundred ninety-one".