39502249349 has 2 divisors, whose sum is σ = 39502249350. Its totient is φ = 39502249348.

The previous prime is 39502249321. The next prime is 39502249363. The reversal of 39502249349 is 94394220593.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39261441025 + 240808324 = 198145^2 + 15518^2 .

It is an emirp because it is prime and its reverse (94394220593) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39502249349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39502249297 and 39502249306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39502299349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19751124674 + 19751124675.

It is an arithmetic number, because the mean of its divisors is an integer number (19751124675).

Almost surely, 2^39502249349 is an apocalyptic number.

It is an amenable number.

39502249349 is a deficient number, since it is larger than the sum of its proper divisors (1).

39502249349 is an equidigital number, since it uses as much as digits as its factorization.

39502249349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 50.

The spelling of 39502249349 in words is "thirty-nine billion, five hundred two million, two hundred forty-nine thousand, three hundred forty-nine".