38383968543457 has 2 divisors, whose sum is σ = 38383968543458. Its totient is φ = 38383968543456.

The previous prime is 38383968543421. The next prime is 38383968543463. The reversal of 38383968543457 is 75434586938383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21524765391441 + 16859203152016 = 4639479^2 + 4105996^2 .

It is an emirp because it is prime and its reverse (75434586938383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38383968543457 - 2⁷ = 38383968543329 is a prime.

It is a super-2 number, since 2×38383968543457² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38383968543407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19191984271728 + 19191984271729.

It is an arithmetic number, because the mean of its divisors is an integer number (19191984271729).

Almost surely, 2^{38383968543457} is an apocalyptic number.

It is an amenable number.

38383968543457 is a deficient number, since it is larger than the sum of its proper divisors (1).

38383968543457 is an equidigital number, since it uses as much as digits as its factorization.

38383968543457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6270566400, while the sum is 76.

The spelling of 38383968543457 in words is "thirty-eight trillion, three hundred eighty-three billion, nine hundred sixty-eight million, five hundred forty-three thousand, four hundred fifty-seven".