61317201263 has 16 divisors (see below), whose sum is σ = 63282643200. Its totient is φ = 59390540160.

The previous prime is 61317201229. The next prime is 61317201293. The reversal of 61317201263 is 36210271316.

It is a cyclic number.

It is not a de Polignac number, because 61317201263 - 2¹⁴ = 61317184879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61317201203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1025783 + ... + 1083911.

It is an arithmetic number, because the mean of its divisors is an integer number (3955165200).

Almost surely, 2^61317201263 is an apocalyptic number.

61317201263 is a deficient number, since it is larger than the sum of its proper divisors (1965441937).

61317201263 is a wasteful number, since it uses less digits than its factorization.

61317201263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58462.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 61317201263 its reverse (36210271316), we get a palindrome (97527472579).

The spelling of 61317201263 in words is "sixty-one billion, three hundred seventeen million, two hundred one thousand, two hundred sixty-three".