67983502791 has 4 divisors (see below), whose sum is σ = 90644670392. Its totient is φ = 45322335192.

The previous prime is 67983502759. The next prime is 67983502817. The reversal of 67983502791 is 19720538976.

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

It is not a de Polignac number, because 67983502791 - 2⁵ = 67983502759 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 (67983502891) 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, 11330583796 + ... + 11330583801.

It is an arithmetic number, because the mean of its divisors is an integer number (22661167598).

Almost surely, 2^67983502791 is an apocalyptic number.

67983502791 is a deficient number, since it is larger than the sum of its proper divisors (22661167601).

67983502791 is a wasteful number, since it uses less digits than its factorization.

67983502791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22661167600.

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 67983502791 in words is "sixty-seven billion, nine hundred eighty-three million, five hundred two thousand, seven hundred ninety-one".