39924628349 has 2 divisors, whose sum is σ = 39924628350. Its totient is φ = 39924628348.

The previous prime is 39924628297. The next prime is 39924628363. The reversal of 39924628349 is 94382642993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32294605849 + 7630022500 = 179707^2 + 87350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39924628349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39924628369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19962314174 + 19962314175.

It is an arithmetic number, because the mean of its divisors is an integer number (19962314175).

Almost surely, 2^39924628349 is an apocalyptic number.

It is an amenable number.

39924628349 is a deficient number, since it is larger than the sum of its proper divisors (1).

39924628349 is an equidigital number, since it uses as much as digits as its factorization.

39924628349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 59.

The spelling of 39924628349 in words is "thirty-nine billion, nine hundred twenty-four million, six hundred twenty-eight thousand, three hundred forty-nine".