39457718899 has 2 divisors, whose sum is σ = 39457718900. Its totient is φ = 39457718898.

The previous prime is 39457718873. The next prime is 39457718921. The reversal of 39457718899 is 99881775493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39457718899 - 2⁷ = 39457718771 is a prime.

It is not a weakly prime, because it can be changed into another prime (39457718819) 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, 19728859449 + 19728859450.

It is an arithmetic number, because the mean of its divisors is an integer number (19728859450).

Almost surely, 2^39457718899 is an apocalyptic number.

39457718899 is a deficient number, since it is larger than the sum of its proper divisors (1).

39457718899 is an equidigital number, since it uses as much as digits as its factorization.

39457718899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137168640, while the sum is 70.

The spelling of 39457718899 in words is "thirty-nine billion, four hundred fifty-seven million, seven hundred eighteen thousand, eight hundred ninety-nine".