61324356463 has 4 divisors (see below), whose sum is σ = 61464047920. Its totient is φ = 61184665008.

The previous prime is 61324356409. The next prime is 61324356473. The reversal of 61324356463 is 36465342316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61324356463 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 (61324356473) 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 in 3 ways as a sum of consecutive naturals, for example, 69845070 + ... + 69845947.

It is an arithmetic number, because the mean of its divisors is an integer number (15366011980).

Almost surely, 2^61324356463 is an apocalyptic number.

61324356463 is a deficient number, since it is larger than the sum of its proper divisors (139691457).

61324356463 is a wasteful number, since it uses less digits than its factorization.

61324356463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139691456.

The product of its digits is 933120, while the sum is 43.

Adding to 61324356463 its reverse (36465342316), we get a palindrome (97789698779).

The spelling of 61324356463 in words is "sixty-one billion, three hundred twenty-four million, three hundred fifty-six thousand, four hundred sixty-three".