73681289226 has 48 divisors (see below), whose sum is σ = 166470359328. Its totient is φ = 24424707600.

The previous prime is 73681289221. The next prime is 73681289233. The reversal of 73681289226 is 62298218637.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (73681289221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330840 + ... + 506771.

It is an arithmetic number, because the mean of its divisors is an integer number (3468132486).

Almost surely, 2^73681289226 is an apocalyptic number.

73681289226 is an abundant number, since it is smaller than the sum of its proper divisors (92789070102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73681289226 is a wasteful number, since it uses less digits than its factorization.

73681289226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837809 (or 837797 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 73681289226 in words is "seventy-three billion, six hundred eighty-one million, two hundred eighty-nine thousand, two hundred twenty-six".