12544770746 has 8 divisors (see below), whose sum is σ = 19325728020. Its totient is φ = 6102861408.

The previous prime is 12544770739. The next prime is 12544770803. The reversal of 12544770746 is 64707744521.

It can be written as a sum of positive squares in 2 ways, for example, as 12455676025 + 89094721 = 111605^2 + 9439^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12544770746.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84761891 + ... + 84762038.

Almost surely, 2^12544770746 is an apocalyptic number.

12544770746 is a deficient number, since it is larger than the sum of its proper divisors (6780957274).

12544770746 is a wasteful number, since it uses less digits than its factorization.

12544770746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169523968.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 12544770746 in words is "twelve billion, five hundred forty-four million, seven hundred seventy thousand, seven hundred forty-six".