38151949291 has 2 divisors, whose sum is σ = 38151949292. Its totient is φ = 38151949290.

The previous prime is 38151949279. The next prime is 38151949337. The reversal of 38151949291 is 19294915183.

It is a weak prime.

It is an emirp because it is prime and its reverse (19294915183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38151949291 - 2¹⁷ = 38151818219 is a prime.

It is not a weakly prime, because it can be changed into another prime (38151949261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19075974645 + 19075974646.

It is an arithmetic number, because the mean of its divisors is an integer number (19075974646).

Almost surely, 2^38151949291 is an apocalyptic number.

38151949291 is a deficient number, since it is larger than the sum of its proper divisors (1).

38151949291 is an equidigital number, since it uses as much as digits as its factorization.

38151949291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 52.

The spelling of 38151949291 in words is "thirty-eight billion, one hundred fifty-one million, nine hundred forty-nine thousand, two hundred ninety-one".