38036012639 has 2 divisors, whose sum is σ = 38036012640. Its totient is φ = 38036012638.

The previous prime is 38036012633. The next prime is 38036012737. The reversal of 38036012639 is 93621063083.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38036012639 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 38036012596 and 38036012605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38036012633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19018006319 + 19018006320.

It is an arithmetic number, because the mean of its divisors is an integer number (19018006320).

Almost surely, 2^38036012639 is an apocalyptic number.

38036012639 is a deficient number, since it is larger than the sum of its proper divisors (1).

38036012639 is an equidigital number, since it uses as much as digits as its factorization.

38036012639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 38036012639 in words is "thirty-eight billion, thirty-six million, twelve thousand, six hundred thirty-nine".