61324442317 has 4 divisors (see below), whose sum is σ = 61325033980. Its totient is φ = 61323850656.

The previous prime is 61324442279. The next prime is 61324442419. The reversal of 61324442317 is 71324442316.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 31774488516 + 29549953801 = 178254^2 + 171901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61324442317 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 (61324452317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94842 + ... + 362827.

It is an arithmetic number, because the mean of its divisors is an integer number (15331258495).

Almost surely, 2^61324442317 is an apocalyptic number.

It is an amenable number.

61324442317 is a deficient number, since it is larger than the sum of its proper divisors (591663).

61324442317 is a wasteful number, since it uses less digits than its factorization.

61324442317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591662.

The product of its digits is 96768, while the sum is 37.

Subtracting 61324442317 from its reverse (71324442316), we obtain a palindrome (9999999999).

The spelling of 61324442317 in words is "sixty-one billion, three hundred twenty-four million, four hundred forty-two thousand, three hundred seventeen".