68536660883 has 4 divisors (see below), whose sum is σ = 71516515728. Its totient is φ = 65556806040.

The previous prime is 68536660873. The next prime is 68536660891. The reversal of 68536660883 is 38806663586.

It is a happy number.

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 68536660883 - 2³² = 64241693587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68536660823) 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, 1489927388 + ... + 1489927433.

It is an arithmetic number, because the mean of its divisors is an integer number (17879128932).

Almost surely, 2^68536660883 is an apocalyptic number.

68536660883 is a deficient number, since it is larger than the sum of its proper divisors (2979854845).

68536660883 is a wasteful number, since it uses less digits than its factorization.

68536660883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979854844.

The product of its (nonzero) digits is 29859840, while the sum is 59.

The spelling of 68536660883 in words is "sixty-eight billion, five hundred thirty-six million, six hundred sixty thousand, eight hundred eighty-three".