73368218501 has 12 divisors (see below), whose sum is σ = 76064022372. Its totient is φ = 70764981504.

The previous prime is 73368218471. The next prime is 73368218507. The reversal of 73368218501 is 10581286337.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 51825601 + 73316392900 = 7199^2 + 270770^2 .

It is not a de Polignac number, because 73368218501 - 2¹⁸ = 73367956357 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 (73368218507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 777011 + ... + 866303.

It is an arithmetic number, because the mean of its divisors is an integer number (6338668531).

Almost surely, 2^73368218501 is an apocalyptic number.

It is an amenable number.

73368218501 is a deficient number, since it is larger than the sum of its proper divisors (2695803871).

73368218501 is an equidigital number, since it uses as much as digits as its factorization.

73368218501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90328 (or 90299 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 73368218501 in words is "seventy-three billion, three hundred sixty-eight million, two hundred eighteen thousand, five hundred one".