73783226369 has 4 divisors (see below), whose sum is σ = 73806961620. Its totient is φ = 73759491120.

The previous prime is 73783226353. The next prime is 73783226371. The reversal of 73783226369 is 96362238737.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5338201969 + 68445024400 = 73063^2 + 261620^2 .

It is a cyclic number.

It is not a de Polignac number, because 73783226369 - 2⁴ = 73783226353 is a prime.

It is a super-2 number, since 2×73783226369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73783226339) 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, 11862962 + ... + 11869179.

It is an arithmetic number, because the mean of its divisors is an integer number (18451740405).

Almost surely, 2^73783226369 is an apocalyptic number.

It is an amenable number.

73783226369 is a deficient number, since it is larger than the sum of its proper divisors (23735251).

73783226369 is a wasteful number, since it uses less digits than its factorization.

73783226369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23735250.

The product of its digits is 13716864, while the sum is 56.

The spelling of 73783226369 in words is "seventy-three billion, seven hundred eighty-three million, two hundred twenty-six thousand, three hundred sixty-nine".