38914594681 has 2 divisors, whose sum is σ = 38914594682. Its totient is φ = 38914594680.

The previous prime is 38914594679. The next prime is 38914594699. The reversal of 38914594681 is 18649541983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31563075600 + 7351519081 = 177660^2 + 85741^2 .

It is an emirp because it is prime and its reverse (18649541983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38914594681 - 2¹ = 38914594679 is a prime.

It is a super-2 number, since 2×38914594681² (a number of 22 digits) contains 22 as substring.

Together with 38914594679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (38914594661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19457297340 + 19457297341.

It is an arithmetic number, because the mean of its divisors is an integer number (19457297341).

Almost surely, 2^38914594681 is an apocalyptic number.

It is an amenable number.

38914594681 is a deficient number, since it is larger than the sum of its proper divisors (1).

38914594681 is an equidigital number, since it uses as much as digits as its factorization.

38914594681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 58.

The spelling of 38914594681 in words is "thirty-eight billion, nine hundred fourteen million, five hundred ninety-four thousand, six hundred eighty-one".