12780922072 has 16 divisors (see below), whose sum is σ = 25006152240. Its totient is φ = 6112614816.

The previous prime is 12780922067. The next prime is 12780922081. The reversal of 12780922072 is 27022908721.

It is a congruent 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 in 3 ways as a sum of consecutive naturals, for example, 34730583 + ... + 34730950.

It is an arithmetic number, because the mean of its divisors is an integer number (1562884515).

Almost surely, 2^12780922072 is an apocalyptic number.

It is an amenable number.

12780922072 is a deficient number, since it is larger than the sum of its proper divisors (12225230168).

12780922072 is a wasteful number, since it uses less digits than its factorization.

12780922072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69461562 (or 69461558 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 12780922072 in words is "twelve billion, seven hundred eighty million, nine hundred twenty-two thousand, seventy-two".