73918987797 has 8 divisors (see below), whose sum is σ = 101222397856. Its totient is φ = 47947451472.

The previous prime is 73918987789. The next prime is 73918987823. The reversal of 73918987797 is 79778981937.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73918987797 - 2³ = 73918987789 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 (73918987397) 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 7 ways as a sum of consecutive naturals, for example, 332968303 + ... + 332968524.

It is an arithmetic number, because the mean of its divisors is an integer number (12652799732).

Almost surely, 2^73918987797 is an apocalyptic number.

It is an amenable number.

73918987797 is a deficient number, since it is larger than the sum of its proper divisors (27303410059).

73918987797 is a wasteful number, since it uses less digits than its factorization.

73918987797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665936867.

The product of its digits is 336063168, while the sum is 75.

The spelling of 73918987797 in words is "seventy-three billion, nine hundred eighteen million, nine hundred eighty-seven thousand, seven hundred ninety-seven".