39003940619977 has 2 divisors, whose sum is σ = 39003940619978. Its totient is φ = 39003940619976.

The previous prime is 39003940619953. The next prime is 39003940620061. The reversal of 39003940619977 is 77991604930093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21384002512656 + 17619938107321 = 4624284^2 + 4197611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39003940619977 is a prime.

It is not a weakly prime, because it can be changed into another prime (39003940619377) 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, 19501970309988 + 19501970309989.

It is an arithmetic number, because the mean of its divisors is an integer number (19501970309989).

Almost surely, 2^{39003940619977} is an apocalyptic number.

It is an amenable number.

39003940619977 is a deficient number, since it is larger than the sum of its proper divisors (1).

39003940619977 is an equidigital number, since it uses as much as digits as its factorization.

39003940619977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69441624, while the sum is 67.

The spelling of 39003940619977 in words is "thirty-nine trillion, three billion, nine hundred forty million, six hundred nineteen thousand, nine hundred seventy-seven".