68561463 has 4 divisors (see below), whose sum is σ = 91415288. Its totient is φ = 45707640.

The previous prime is 68561453. The next prime is 68561477. The reversal of 68561463 is 36416586.

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

It is not a de Polignac number, because 68561463 - 2⁴ = 68561447 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 (68561453) 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, 11426908 + ... + 11426913.

It is an arithmetic number, because the mean of its divisors is an integer number (22853822).

Almost surely, 2^68561463 is an apocalyptic number.

68561463 is a deficient number, since it is larger than the sum of its proper divisors (22853825).

68561463 is a wasteful number, since it uses less digits than its factorization.

68561463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22853824.

The product of its digits is 103680, while the sum is 39.

The square root of 68561463 is about 8280.1849617022. The cubic root of 68561463 is about 409.2858139766.

The spelling of 68561463 in words is "sixty-eight million, five hundred sixty-one thousand, four hundred sixty-three".