39520486739 has 2 divisors, whose sum is σ = 39520486740. Its totient is φ = 39520486738.

The previous prime is 39520486727. The next prime is 39520486783. The reversal of 39520486739 is 93768402593.

39520486739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39520486739 - 2²⁸ = 39252051283 is a prime.

It is not a weakly prime, because it can be changed into another prime (39520486939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19760243369 + 19760243370.

It is an arithmetic number, because the mean of its divisors is an integer number (19760243370).

Almost surely, 2^39520486739 is an apocalyptic number.

39520486739 is a deficient number, since it is larger than the sum of its proper divisors (1).

39520486739 is an equidigital number, since it uses as much as digits as its factorization.

39520486739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 39520486739 in words is "thirty-nine billion, five hundred twenty million, four hundred eighty-six thousand, seven hundred thirty-nine".