68419563 has 4 divisors (see below), whose sum is σ = 91226088. Its totient is φ = 45613040.

The previous prime is 68419541. The next prime is 68419567. The reversal of 68419563 is 36591486.

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

It is a cyclic number.

It is not a de Polignac number, because 68419563 - 2⁵ = 68419531 is a prime.

It is a super-2 number, since 2×68419563² = 9362473202221938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68419567) 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, 11403258 + ... + 11403263.

It is an arithmetic number, because the mean of its divisors is an integer number (22806522).

Almost surely, 2^68419563 is an apocalyptic number.

68419563 is a deficient number, since it is larger than the sum of its proper divisors (22806525).

68419563 is a wasteful number, since it uses less digits than its factorization.

68419563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22806524.

The product of its digits is 155520, while the sum is 42.

The square root of 68419563 is about 8271.6118743568. The cubic root of 68419563 is about 409.0032559725.

The spelling of 68419563 in words is "sixty-eight million, four hundred nineteen thousand, five hundred sixty-three".