38156689379 has 2 divisors, whose sum is σ = 38156689380. Its totient is φ = 38156689378.

The previous prime is 38156689349. The next prime is 38156689381. The reversal of 38156689379 is 97398665183.

It is a strong prime.

It is an emirp because it is prime and its reverse (97398665183) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38156689379 is a prime.

It is a Sophie Germain prime.

Together with 38156689381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38156689349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19078344689 + 19078344690.

It is an arithmetic number, because the mean of its divisors is an integer number (19078344690).

Almost surely, 2^38156689379 is an apocalyptic number.

38156689379 is a deficient number, since it is larger than the sum of its proper divisors (1).

38156689379 is an equidigital number, since it uses as much as digits as its factorization.

38156689379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 65.

The spelling of 38156689379 in words is "thirty-eight billion, one hundred fifty-six million, six hundred eighty-nine thousand, three hundred seventy-nine".