2638031970839 has 2 divisors, whose sum is σ = 2638031970840. Its totient is φ = 2638031970838.

The previous prime is 2638031970751. The next prime is 2638031970863. The reversal of 2638031970839 is 9380791308362.

2638031970839 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2638031970839 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2638031970239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319015985419 + 1319015985420.

It is an arithmetic number, because the mean of its divisors is an integer number (1319015985420).

Almost surely, 2^{2638031970839} is an apocalyptic number.

2638031970839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638031970839 is an equidigital number, since it uses as much as digits as its factorization.

2638031970839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 2638031970839 in words is "two trillion, six hundred thirty-eight billion, thirty-one million, nine hundred seventy thousand, eight hundred thirty-nine".