39404268313 has 2 divisors, whose sum is σ = 39404268314. Its totient is φ = 39404268312.

The previous prime is 39404268263. The next prime is 39404268331. The reversal of 39404268313 is 31386240493.

39404268313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (39404268331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37538287504 + 1865980809 = 193748^2 + 43197^2 .

It is a cyclic number.

It is not a de Polignac number, because 39404268313 - 2²¹ = 39402171161 is a prime.

It is a super-2 number, since 2×39404268313² (a number of 22 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 39404268313.

It is not a weakly prime, because it can be changed into another prime (39404268713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19702134156 + 19702134157.

It is an arithmetic number, because the mean of its divisors is an integer number (19702134157).

Almost surely, 2^39404268313 is an apocalyptic number.

It is an amenable number.

39404268313 is a deficient number, since it is larger than the sum of its proper divisors (1).

39404268313 is an equidigital number, since it uses as much as digits as its factorization.

39404268313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 39404268313 in words is "thirty-nine billion, four hundred four million, two hundred sixty-eight thousand, three hundred thirteen".