73867218351 has 4 divisors (see below), whose sum is σ = 98489624472. Its totient is φ = 49244812232.

The previous prime is 73867218323. The next prime is 73867218361. The reversal of 73867218351 is 15381276837.

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 73867218351 - 2⁶ = 73867218287 is a prime.

It is a super-2 number, since 2×73867218351² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73867218294 and 73867218303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73867218361) 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, 12311203056 + ... + 12311203061.

It is an arithmetic number, because the mean of its divisors is an integer number (24622406118).

Almost surely, 2^73867218351 is an apocalyptic number.

73867218351 is a deficient number, since it is larger than the sum of its proper divisors (24622406121).

73867218351 is a wasteful number, since it uses less digits than its factorization.

73867218351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24622406120.

The product of its digits is 1693440, while the sum is 51.

The spelling of 73867218351 in words is "seventy-three billion, eight hundred sixty-seven million, two hundred eighteen thousand, three hundred fifty-one".