12545090626 has 4 divisors (see below), whose sum is σ = 18817635942. Its totient is φ = 6272545312.

The previous prime is 12545090573. The next prime is 12545090777. The reversal of 12545090626 is 62609054521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12420879601 + 124211025 = 111449^2 + 11145^2 .

It is a super-3 number, since 3×12545090626³ (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3136272655 + ... + 3136272658.

Almost surely, 2^12545090626 is an apocalyptic number.

12545090626 is a deficient number, since it is larger than the sum of its proper divisors (6272545316).

12545090626 is an equidigital number, since it uses as much as digits as its factorization.

12545090626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6272545315.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 12545090626 in words is "twelve billion, five hundred forty-five million, ninety thousand, six hundred twenty-six".