38914663831 has 2 divisors, whose sum is σ = 38914663832. Its totient is φ = 38914663830.

The previous prime is 38914663729. The next prime is 38914663871. The reversal of 38914663831 is 13836641983.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13836641983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38914663831 - 2¹¹ = 38914661783 is a prime.

It is a super-2 number, since 2×38914663831² (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 (38914663871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19457331915 + 19457331916.

It is an arithmetic number, because the mean of its divisors is an integer number (19457331916).

Almost surely, 2^38914663831 is an apocalyptic number.

38914663831 is a deficient number, since it is larger than the sum of its proper divisors (1).

38914663831 is an equidigital number, since it uses as much as digits as its factorization.

38914663831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 52.

The spelling of 38914663831 in words is "thirty-eight billion, nine hundred fourteen million, six hundred sixty-three thousand, eight hundred thirty-one".