5145242336261 has 2 divisors, whose sum is σ = 5145242336262. Its totient is φ = 5145242336260.

The previous prime is 5145242336251. The next prime is 5145242336287. The reversal of 5145242336261 is 1626332425415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2988382945636 + 2156859390625 = 1728694^2 + 1468625^2 .

It is a cyclic number.

It is not a de Polignac number, because 5145242336261 - 2²² = 5145238141957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5145242336251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2572621168130 + 2572621168131.

It is an arithmetic number, because the mean of its divisors is an integer number (2572621168131).

Almost surely, 2^{5145242336261} is an apocalyptic number.

It is an amenable number.

5145242336261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5145242336261 is an equidigital number, since it uses as much as digits as its factorization.

5145242336261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 44.

The spelling of 5145242336261 in words is "five trillion, one hundred forty-five billion, two hundred forty-two million, three hundred thirty-six thousand, two hundred sixty-one".