39387487427 has 2 divisors, whose sum is σ = 39387487428. Its totient is φ = 39387487426.

The previous prime is 39387487313. The next prime is 39387487453. The reversal of 39387487427 is 72478478393.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39387487427 - 2²² = 39383293123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39387487427.

It is not a weakly prime, because it can be changed into another prime (39387487457) 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, 19693743713 + 19693743714.

It is an arithmetic number, because the mean of its divisors is an integer number (19693743714).

Almost surely, 2^39387487427 is an apocalyptic number.

39387487427 is a deficient number, since it is larger than the sum of its proper divisors (1).

39387487427 is an equidigital number, since it uses as much as digits as its factorization.

39387487427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56899584, while the sum is 62.

The spelling of 39387487427 in words is "thirty-nine billion, three hundred eighty-seven million, four hundred eighty-seven thousand, four hundred twenty-seven".