38864144386537 has 2 divisors, whose sum is σ = 38864144386538. Its totient is φ = 38864144386536.

The previous prime is 38864144386523. The next prime is 38864144386591. The reversal of 38864144386537 is 73568344146883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37678530464656 + 1185613921881 = 6138284^2 + 1088859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38864144386537 is a prime.

It is a super-4 number, since 4×38864144386537⁴ (a number of 55 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (38864148386537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19432072193268 + 19432072193269.

It is an arithmetic number, because the mean of its divisors is an integer number (19432072193269).

Almost surely, 2^{38864144386537} is an apocalyptic number.

It is an amenable number.

38864144386537 is a deficient number, since it is larger than the sum of its proper divisors (1).

38864144386537 is an equidigital number, since it uses as much as digits as its factorization.

38864144386537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1114767360, while the sum is 70.

The spelling of 38864144386537 in words is "thirty-eight trillion, eight hundred sixty-four billion, one hundred forty-four million, three hundred eighty-six thousand, five hundred thirty-seven".