12951997964 has 6 divisors (see below), whose sum is σ = 22665996444. Its totient is φ = 6475998980.

The previous prime is 12951997937. The next prime is 12951997967. The reversal of 12951997964 is 46979915921.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 12951997897 and 12951997906.

It is not an unprimeable number, because it can be changed into a prime (12951997967) by changing a digit.

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, 1618999742 + ... + 1618999749.

It is an arithmetic number, because the mean of its divisors is an integer number (3777666074).

Almost surely, 2^12951997964 is an apocalyptic number.

It is an amenable number.

12951997964 is a deficient number, since it is larger than the sum of its proper divisors (9713998480).

12951997964 is a wasteful number, since it uses less digits than its factorization.

12951997964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237999495 (or 3237999493 counting only the distinct ones).

The product of its digits is 11022480, while the sum is 62.

The spelling of 12951997964 in words is "twelve billion, nine hundred fifty-one million, nine hundred ninety-seven thousand, nine hundred sixty-four".