68433202447 has 4 divisors (see below), whose sum is σ = 69724395000. Its totient is φ = 67142009896.

The previous prime is 68433202379. The next prime is 68433202457. The reversal of 68433202447 is 74420233486.

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 68433202447 - 2³¹ = 66285718799 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 (68433202457) 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, 645596197 + ... + 645596302.

It is an arithmetic number, because the mean of its divisors is an integer number (17431098750).

Almost surely, 2^68433202447 is an apocalyptic number.

68433202447 is a deficient number, since it is larger than the sum of its proper divisors (1291192553).

68433202447 is a wasteful number, since it uses less digits than its factorization.

68433202447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291192552.

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 68433202447 in words is "sixty-eight billion, four hundred thirty-three million, two hundred two thousand, four hundred forty-seven".