39677742613 has 2 divisors, whose sum is σ = 39677742614. Its totient is φ = 39677742612.

The previous prime is 39677742607. The next prime is 39677742619. The reversal of 39677742613 is 31624777693.

It is a balanced prime because it is at equal distance from previous prime (39677742607) and next prime (39677742619).

It can be written as a sum of positive squares in only one way, i.e., 23666130244 + 16011612369 = 153838^2 + 126537^2 .

It is a cyclic number.

It is not a de Polignac number, because 39677742613 - 2¹⁷ = 39677611541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39677742619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19838871306 + 19838871307.

It is an arithmetic number, because the mean of its divisors is an integer number (19838871307).

Almost surely, 2^39677742613 is an apocalyptic number.

It is an amenable number.

39677742613 is a deficient number, since it is larger than the sum of its proper divisors (1).

39677742613 is an equidigital number, since it uses as much as digits as its factorization.

39677742613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8001504, while the sum is 55.

The spelling of 39677742613 in words is "thirty-nine billion, six hundred seventy-seven million, seven hundred forty-two thousand, six hundred thirteen".