39720574903 has 2 divisors, whose sum is σ = 39720574904. Its totient is φ = 39720574902.

The previous prime is 39720574889. The next prime is 39720574909. The reversal of 39720574903 is 30947502793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39720574903 - 2⁵ = 39720574871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39720574909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19860287451 + 19860287452.

It is an arithmetic number, because the mean of its divisors is an integer number (19860287452).

Almost surely, 2^39720574903 is an apocalyptic number.

39720574903 is a deficient number, since it is larger than the sum of its proper divisors (1).

39720574903 is an equidigital number, since it uses as much as digits as its factorization.

39720574903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1428840, while the sum is 49.

The spelling of 39720574903 in words is "thirty-nine billion, seven hundred twenty million, five hundred seventy-four thousand, nine hundred three".