73766343445 has 4 divisors (see below), whose sum is σ = 88519612140. Its totient is φ = 59013074752.

The previous prime is 73766343421. The next prime is 73766343449. The reversal of 73766343445 is 54434366737.

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 57411514449 + 16354828996 = 239607^2 + 127886^2 .

It is a cyclic number.

It is not a de Polignac number, because 73766343445 - 2¹⁹ = 73765819157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73766343392 and 73766343401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73766343449) 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, 7376634340 + ... + 7376634349.

It is an arithmetic number, because the mean of its divisors is an integer number (22129903035).

Almost surely, 2^73766343445 is an apocalyptic number.

It is an amenable number.

73766343445 is a deficient number, since it is larger than the sum of its proper divisors (14753268695).

73766343445 is a wasteful number, since it uses less digits than its factorization.

73766343445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14753268694.

The product of its digits is 15240960, while the sum is 52.

The spelling of 73766343445 in words is "seventy-three billion, seven hundred sixty-six million, three hundred forty-three thousand, four hundred forty-five".