12649372773 has 32 divisors (see below), whose sum is σ = 17547632640. Its totient is φ = 8096550720.

The previous prime is 12649372763. The next prime is 12649372781. The reversal of 12649372773 is 37727394621.

It is not a de Polignac number, because 12649372773 - 2²¹ = 12647275621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12649372763) 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 31 ways as a sum of consecutive naturals, for example, 12867640 + ... + 12868622.

It is an arithmetic number, because the mean of its divisors is an integer number (548363520).

Almost surely, 2^12649372773 is an apocalyptic number.

It is an amenable number.

12649372773 is a deficient number, since it is larger than the sum of its proper divisors (4898259867).

12649372773 is a wasteful number, since it uses less digits than its factorization.

12649372773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969.

The product of its digits is 2667168, while the sum is 51.

The spelling of 12649372773 in words is "twelve billion, six hundred forty-nine million, three hundred seventy-two thousand, seven hundred seventy-three".