13859790349 has 2 divisors, whose sum is σ = 13859790350. Its totient is φ = 13859790348.

The previous prime is 13859790319. The next prime is 13859790367. The reversal of 13859790349 is 94309795831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11920709124 + 1939081225 = 109182^2 + 44035^2 .

It is a cyclic number.

It is not a de Polignac number, because 13859790349 - 2⁷ = 13859790221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13859790293 and 13859790302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13859790319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6929895174 + 6929895175.

It is an arithmetic number, because the mean of its divisors is an integer number (6929895175).

Almost surely, 2^13859790349 is an apocalyptic number.

It is an amenable number.

13859790349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13859790349 is an equidigital number, since it uses as much as digits as its factorization.

13859790349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 13859790349 in words is "thirteen billion, eight hundred fifty-nine million, seven hundred ninety thousand, three hundred forty-nine".