261473500500713 has 2 divisors, whose sum is σ = 261473500500714. Its totient is φ = 261473500500712.

The previous prime is 261473500500661. The next prime is 261473500500763. The reversal of 261473500500713 is 317005005374162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 257536121476624 + 3937379024089 = 16047932^2 + 1984283^2 .

It is a cyclic number.

It is not a de Polignac number, because 261473500500713 - 2²⁴ = 261473483723497 is a prime.

It is a super-2 number, since 2×261473500500713² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (261473500500763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130736750250356 + 130736750250357.

It is an arithmetic number, because the mean of its divisors is an integer number (130736750250357).

Almost surely, 2^{261473500500713} is an apocalyptic number.

It is an amenable number.

261473500500713 is a deficient number, since it is larger than the sum of its proper divisors (1).

261473500500713 is an equidigital number, since it uses as much as digits as its factorization.

261473500500713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 44.

Adding to 261473500500713 its reverse (317005005374162), we get a palindrome (578478505874875).

The spelling of 261473500500713 in words is "two hundred sixty-one trillion, four hundred seventy-three billion, five hundred million, five hundred thousand, seven hundred thirteen".