73797567791 has 4 divisors (see below), whose sum is σ = 73814541000. Its totient is φ = 73780594584.

The previous prime is 73797567737. The next prime is 73797567821. The reversal of 73797567791 is 19776579737.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19776579737 = 43 ⋅459920459.

It is a cyclic number.

It is not a de Polignac number, because 73797567791 - 2²⁶ = 73730458927 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 (73797567721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8480081 + ... + 8488778.

It is an arithmetic number, because the mean of its divisors is an integer number (18453635250).

Almost surely, 2^73797567791 is an apocalyptic number.

73797567791 is a deficient number, since it is larger than the sum of its proper divisors (16973209).

73797567791 is a wasteful number, since it uses less digits than its factorization.

73797567791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16973208.

The product of its digits is 122523030, while the sum is 68.

The spelling of 73797567791 in words is "seventy-three billion, seven hundred ninety-seven million, five hundred sixty-seven thousand, seven hundred ninety-one".