73117224851 has 4 divisors (see below), whose sum is σ = 79764245304. Its totient is φ = 66470204400.

The previous prime is 73117224839. The next prime is 73117224853. The reversal of 73117224851 is 15842271137.

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 73117224851 - 2³⁴ = 55937355667 is a prime.

It is a super-2 number, since 2×73117224851² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73117224799 and 73117224808.

It is not an unprimeable number, because it can be changed into a prime (73117224853) 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, 3323510210 + ... + 3323510231.

It is an arithmetic number, because the mean of its divisors is an integer number (19941061326).

Almost surely, 2^73117224851 is an apocalyptic number.

73117224851 is a deficient number, since it is larger than the sum of its proper divisors (6647020453).

73117224851 is a wasteful number, since it uses less digits than its factorization.

73117224851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647020452.

The product of its digits is 94080, while the sum is 41.

Adding to 73117224851 its reverse (15842271137), we get a palindrome (88959495988).

The spelling of 73117224851 in words is "seventy-three billion, one hundred seventeen million, two hundred twenty-four thousand, eight hundred fifty-one".