39426535957 has 2 divisors, whose sum is σ = 39426535958. Its totient is φ = 39426535956.

The previous prime is 39426535943. The next prime is 39426535969. The reversal of 39426535957 is 75953562493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24348169521 + 15078366436 = 156039^2 + 122794^2 .

It is an emirp because it is prime and its reverse (75953562493) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39426535957 is a prime.

It is a super-3 number, since 3×39426535957³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39426535457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19713267978 + 19713267979.

It is an arithmetic number, because the mean of its divisors is an integer number (19713267979).

Almost surely, 2^39426535957 is an apocalyptic number.

It is an amenable number.

39426535957 is a deficient number, since it is larger than the sum of its proper divisors (1).

39426535957 is an equidigital number, since it uses as much as digits as its factorization.

39426535957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618000, while the sum is 58.

The spelling of 39426535957 in words is "thirty-nine billion, four hundred twenty-six million, five hundred thirty-five thousand, nine hundred fifty-seven".