8919101273 has 4 divisors (see below), whose sum is σ = 8984204340. Its totient is φ = 8853998208.

The previous prime is 8919101251. The next prime is 8919101291. The reversal of 8919101273 is 3721019198.

It is a happy number.

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 6267572224 + 2651529049 = 79168^2 + 51493^2 .

It is a cyclic number.

It is not a de Polignac number, because 8919101273 - 2²⁸ = 8650665817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8919101273.

It is not an unprimeable number, because it can be changed into a prime (8919104273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32551328 + ... + 32551601.

It is an arithmetic number, because the mean of its divisors is an integer number (2246051085).

Almost surely, 2^8919101273 is an apocalyptic number.

It is an amenable number.

8919101273 is a deficient number, since it is larger than the sum of its proper divisors (65103067).

8919101273 is a wasteful number, since it uses less digits than its factorization.

8919101273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65103066.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 8919101273 is about 94440.9936044724. The cubic root of 8919101273 is about 2073.8326058822.

The spelling of 8919101273 in words is "eight billion, nine hundred nineteen million, one hundred one thousand, two hundred seventy-three".