39386875800973 has 2 divisors, whose sum is σ = 39386875800974. Its totient is φ = 39386875800972.

The previous prime is 39386875800949. The next prime is 39386875801003. The reversal of 39386875800973 is 37900857868393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23744004419524 + 15642871381449 = 4872782^2 + 3955107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39386875800973 is a prime.

It is a super-2 number, since 2×39386875800973² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39386875800973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39386875800473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19693437900486 + 19693437900487.

It is an arithmetic number, because the mean of its divisors is an integer number (19693437900487).

Almost surely, 2^{39386875800973} is an apocalyptic number.

It is an amenable number.

39386875800973 is a deficient number, since it is larger than the sum of its proper divisors (1).

39386875800973 is an equidigital number, since it uses as much as digits as its factorization.

39386875800973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1646023680, while the sum is 76.

The spelling of 39386875800973 in words is "thirty-nine trillion, three hundred eighty-six billion, eight hundred seventy-five million, eight hundred thousand, nine hundred seventy-three".