12902737549 has 8 divisors (see below), whose sum is σ = 13896249752. Its totient is φ = 11909367360.

The previous prime is 12902737511. The next prime is 12902737763. The reversal of 12902737549 is 94573720921.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3341418025 + 9561319524 = 57805^2 + 97782^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12902737549 - 2¹¹ = 12902735501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12902737349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222907 + ... + 274759.

It is an arithmetic number, because the mean of its divisors is an integer number (1737031219).

Almost surely, 2^12902737549 is an apocalyptic number.

It is an amenable number.

12902737549 is a deficient number, since it is larger than the sum of its proper divisors (993512203).

12902737549 is a wasteful number, since it uses less digits than its factorization.

12902737549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71007.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 12902737549 in words is "twelve billion, nine hundred two million, seven hundred thirty-seven thousand, five hundred forty-nine".