39429386047 has 2 divisors, whose sum is σ = 39429386048. Its totient is φ = 39429386046.

The previous prime is 39429385939. The next prime is 39429386057. The reversal of 39429386047 is 74068392493.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39429386047 - 2¹⁵ = 39429353279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39429386057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19714693023 + 19714693024.

It is an arithmetic number, because the mean of its divisors is an integer number (19714693024).

Almost surely, 2^39429386047 is an apocalyptic number.

39429386047 is a deficient number, since it is larger than the sum of its proper divisors (1).

39429386047 is an equidigital number, since it uses as much as digits as its factorization.

39429386047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 39429386047 in words is "thirty-nine billion, four hundred twenty-nine million, three hundred eighty-six thousand, forty-seven".