12781970463 has 16 divisors (see below), whose sum is σ = 17453809152. Its totient is φ = 8318100000.

The previous prime is 12781970459. The next prime is 12781970473. The reversal of 12781970463 is 36407918721.

It is a happy number.

It is not a de Polignac number, because 12781970463 - 2² = 12781970459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12781970473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275563 + ... + 318588.

It is an arithmetic number, because the mean of its divisors is an integer number (1090863072).

Almost surely, 2^12781970463 is an apocalyptic number.

12781970463 is a deficient number, since it is larger than the sum of its proper divisors (4671838689).

12781970463 is a wasteful number, since it uses less digits than its factorization.

12781970463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594326.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 12781970463 in words is "twelve billion, seven hundred eighty-one million, nine hundred seventy thousand, four hundred sixty-three".