13442434949 has 2 divisors, whose sum is σ = 13442434950. Its totient is φ = 13442434948.

The previous prime is 13442434937. The next prime is 13442434987. The reversal of 13442434949 is 94943424431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13436982724 + 5452225 = 115918^2 + 2335^2 .

It is a cyclic number.

It is not a de Polignac number, because 13442434949 - 2⁴ = 13442434933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13442434349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721217474 + 6721217475.

It is an arithmetic number, because the mean of its divisors is an integer number (6721217475).

Almost surely, 2^13442434949 is an apocalyptic number.

It is an amenable number.

13442434949 is a deficient number, since it is larger than the sum of its proper divisors (1).

13442434949 is an equidigital number, since it uses as much as digits as its factorization.

13442434949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 47.

The spelling of 13442434949 in words is "thirteen billion, four hundred forty-two million, four hundred thirty-four thousand, nine hundred forty-nine".