72763100266 has 4 divisors (see below), whose sum is σ = 109144650402. Its totient is φ = 36381550132.

The previous prime is 72763100251. The next prime is 72763100269. The reversal of 72763100266 is 66200136727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66200136727 = 16649 ⋅3976223.

It can be written as a sum of positive squares in only one way, i.e., 63065774641 + 9697325625 = 251129^2 + 98475^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (72763100269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18190775065 + ... + 18190775068.

Almost surely, 2^72763100266 is an apocalyptic number.

72763100266 is a deficient number, since it is larger than the sum of its proper divisors (36381550136).

72763100266 is a wasteful number, since it uses less digits than its factorization.

72763100266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36381550135.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 72763100266 in words is "seventy-two billion, seven hundred sixty-three million, one hundred thousand, two hundred sixty-six".