13180501949 has 2 divisors, whose sum is σ = 13180501950. Its totient is φ = 13180501948.

The previous prime is 13180501921. The next prime is 13180501987. The reversal of 13180501949 is 94910508131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9483253924 + 3697248025 = 97382^2 + 60805^2 .

It is a cyclic number.

It is not a de Polignac number, because 13180501949 - 2¹² = 13180497853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13180509949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6590250974 + 6590250975.

It is an arithmetic number, because the mean of its divisors is an integer number (6590250975).

Almost surely, 2^13180501949 is an apocalyptic number.

It is an amenable number.

13180501949 is a deficient number, since it is larger than the sum of its proper divisors (1).

13180501949 is an equidigital number, since it uses as much as digits as its factorization.

13180501949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 13180501949 in words is "thirteen billion, one hundred eighty million, five hundred one thousand, nine hundred forty-nine".