12651887737 has 8 divisors (see below), whose sum is σ = 12689094600. Its totient is φ = 12614705664.

The previous prime is 12651887719. The next prime is 12651887783. The reversal of 12651887737 is 73778815621.

It can be written as a sum of positive squares in 4 ways, for example, as 98029801 + 12553857936 = 9901^2 + 112044^2 .

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 12651887737 - 2⁷ = 12651887609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12651867737) 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 7 ways as a sum of consecutive naturals, for example, 1602243 + ... + 1610119.

It is an arithmetic number, because the mean of its divisors is an integer number (1586136825).

Almost surely, 2^12651887737 is an apocalyptic number.

It is an amenable number.

12651887737 is a deficient number, since it is larger than the sum of its proper divisors (37206863).

12651887737 is an equidigital number, since it uses as much as digits as its factorization.

12651887737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12395.

The product of its digits is 3951360, while the sum is 55.

The spelling of 12651887737 in words is "twelve billion, six hundred fifty-one million, eight hundred eighty-seven thousand, seven hundred thirty-seven".