38191483531 has 2 divisors, whose sum is σ = 38191483532. Its totient is φ = 38191483530.

The previous prime is 38191483489. The next prime is 38191483541. The reversal of 38191483531 is 13538419183.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38191483531 - 2⁹ = 38191483019 is a prime.

It is a super-2 number, since 2×38191483531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38191483541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19095741765 + 19095741766.

It is an arithmetic number, because the mean of its divisors is an integer number (19095741766).

Almost surely, 2^38191483531 is an apocalyptic number.

38191483531 is a deficient number, since it is larger than the sum of its proper divisors (1).

38191483531 is an equidigital number, since it uses as much as digits as its factorization.

38191483531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The spelling of 38191483531 in words is "thirty-eight billion, one hundred ninety-one million, four hundred eighty-three thousand, five hundred thirty-one".