38013791293 has 2 divisors, whose sum is σ = 38013791294. Its totient is φ = 38013791292.

The previous prime is 38013791227. The next prime is 38013791297. The reversal of 38013791293 is 39219731083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21793731129 + 16220060164 = 147627^2 + 127358^2 .

It is a cyclic number.

It is not a de Polignac number, because 38013791293 - 2³³ = 29423856701 is a prime.

It is a super-2 number, since 2×38013791293² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38013791297) 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, 19006895646 + 19006895647.

It is an arithmetic number, because the mean of its divisors is an integer number (19006895647).

Almost surely, 2^38013791293 is an apocalyptic number.

It is an amenable number.

38013791293 is a deficient number, since it is larger than the sum of its proper divisors (1).

38013791293 is an equidigital number, since it uses as much as digits as its factorization.

38013791293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 38013791293 in words is "thirty-eight billion, thirteen million, seven hundred ninety-one thousand, two hundred ninety-three".