12508813822 has 16 divisors (see below), whose sum is σ = 19027188432. Its totient is φ = 6166480320.

The previous prime is 12508813817. The next prime is 12508813829. The reversal of 12508813822 is 22831880521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12508813829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429297 + ... + 457507.

It is an arithmetic number, because the mean of its divisors is an integer number (1189199277).

Almost surely, 2^12508813822 is an apocalyptic number.

12508813822 is a deficient number, since it is larger than the sum of its proper divisors (6518374610).

12508813822 is a wasteful number, since it uses less digits than its factorization.

12508813822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31323.

The product of its (nonzero) digits is 61440, while the sum is 40.

The spelling of 12508813822 in words is "twelve billion, five hundred eight million, eight hundred thirteen thousand, eight hundred twenty-two".