13846645949 has 2 divisors, whose sum is σ = 13846645950. Its totient is φ = 13846645948.

The previous prime is 13846645937. The next prime is 13846645951. The reversal of 13846645949 is 94954664831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6929397049 + 6917248900 = 83243^2 + 83170^2 .

It is a cyclic number.

It is not a de Polignac number, because 13846645949 - 2⁴ = 13846645933 is a prime.

It is a super-2 number, since 2×13846645949² (a number of 21 digits) contains 22 as substring.

Together with 13846645951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13846645049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6923322974 + 6923322975.

It is an arithmetic number, because the mean of its divisors is an integer number (6923322975).

Almost surely, 2^13846645949 is an apocalyptic number.

It is an amenable number.

13846645949 is a deficient number, since it is larger than the sum of its proper divisors (1).

13846645949 is an equidigital number, since it uses as much as digits as its factorization.

13846645949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22394880, while the sum is 59.

The spelling of 13846645949 in words is "thirteen billion, eight hundred forty-six million, six hundred forty-five thousand, nine hundred forty-nine".