13649948843 has 2 divisors, whose sum is σ = 13649948844. Its totient is φ = 13649948842.

The previous prime is 13649948827. The next prime is 13649948881. The reversal of 13649948843 is 34884994631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13649948843 - 2⁴ = 13649948827 is a prime.

It is a super-2 number, since 2×13649948843² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13649948803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6824974421 + 6824974422.

It is an arithmetic number, because the mean of its divisors is an integer number (6824974422).

Almost surely, 2^13649948843 is an apocalyptic number.

13649948843 is a deficient number, since it is larger than the sum of its proper divisors (1).

13649948843 is an equidigital number, since it uses as much as digits as its factorization.

13649948843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17915904, while the sum is 59.

The spelling of 13649948843 in words is "thirteen billion, six hundred forty-nine million, nine hundred forty-eight thousand, eight hundred forty-three".