38941507879 has 2 divisors, whose sum is σ = 38941507880. Its totient is φ = 38941507878.

The previous prime is 38941507877. The next prime is 38941507907. The reversal of 38941507879 is 97870514983.

It is a weak prime.

It is an emirp because it is prime and its reverse (97870514983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38941507879 - 2¹ = 38941507877 is a prime.

Together with 38941507877, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38941507873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19470753939 + 19470753940.

It is an arithmetic number, because the mean of its divisors is an integer number (19470753940).

Almost surely, 2^38941507879 is an apocalyptic number.

38941507879 is a deficient number, since it is larger than the sum of its proper divisors (1).

38941507879 is an equidigital number, since it uses as much as digits as its factorization.

38941507879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 38941507879 in words is "thirty-eight billion, nine hundred forty-one million, five hundred seven thousand, eight hundred seventy-nine".