5101431305249 has 2 divisors, whose sum is σ = 5101431305250. Its totient is φ = 5101431305248.

The previous prime is 5101431305203. The next prime is 5101431305279. The reversal of 5101431305249 is 9425031341015.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4042785806224 + 1058645499025 = 2010668^2 + 1028905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5101431305249 is a prime.

It is not a weakly prime, because it can be changed into another prime (5101431305279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550715652624 + 2550715652625.

It is an arithmetic number, because the mean of its divisors is an integer number (2550715652625).

Almost surely, 2^{5101431305249} is an apocalyptic number.

It is an amenable number.

5101431305249 is a deficient number, since it is larger than the sum of its proper divisors (1).

5101431305249 is an equidigital number, since it uses as much as digits as its factorization.

5101431305249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 5101431305249 in words is "five trillion, one hundred one billion, four hundred thirty-one million, three hundred five thousand, two hundred forty-nine".