12738854501 has 2 divisors, whose sum is σ = 12738854502. Its totient is φ = 12738854500.

The previous prime is 12738854489. The next prime is 12738854539. The reversal of 12738854501 is 10545883721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11909356900 + 829497601 = 109130^2 + 28801^2 .

It is a cyclic number.

It is not a de Polignac number, because 12738854501 - 2¹⁴ = 12738838117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12738854581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6369427250 + 6369427251.

It is an arithmetic number, because the mean of its divisors is an integer number (6369427251).

Almost surely, 2^12738854501 is an apocalyptic number.

It is an amenable number.

12738854501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12738854501 is an equidigital number, since it uses as much as digits as its factorization.

12738854501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 12738854501 in words is "twelve billion, seven hundred thirty-eight million, eight hundred fifty-four thousand, five hundred one".