13380744973 has 2 divisors, whose sum is σ = 13380744974. Its totient is φ = 13380744972.

The previous prime is 13380744967. The next prime is 13380744977. The reversal of 13380744973 is 37944708331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13124680969 + 256064004 = 114563^2 + 16002^2 .

It is a cyclic number.

It is not a de Polignac number, because 13380744973 - 2⁵ = 13380744941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13380744977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6690372486 + 6690372487.

It is an arithmetic number, because the mean of its divisors is an integer number (6690372487).

Almost surely, 2^13380744973 is an apocalyptic number.

It is an amenable number.

13380744973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13380744973 is an equidigital number, since it uses as much as digits as its factorization.

13380744973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 13380744973 in words is "thirteen billion, three hundred eighty million, seven hundred forty-four thousand, nine hundred seventy-three".