73866266837 has 64 divisors (see below), whose sum is σ = 87793846272. Its totient is φ = 61471872000.

The previous prime is 73866266797. The next prime is 73866266839.

It is a happy number.

73866266837 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 73866266837 - 2²⁶ = 73799157973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73866266837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73866266839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223160762 + ... + 223161092.

It is an arithmetic number, because the mean of its divisors is an integer number (1371778848).

Almost surely, 2^73866266837 is an apocalyptic number.

It is an amenable number.

73866266837 is a deficient number, since it is larger than the sum of its proper divisors (13927579435).

73866266837 is a wasteful number, since it uses less digits than its factorization.

73866266837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 73156608, while the sum is 62.

The spelling of 73866266837 in words is "seventy-three billion, eight hundred sixty-six million, two hundred sixty-six thousand, eight hundred thirty-seven".