1212831695768 has 64 divisors (see below), whose sum is σ = 2864419891200. Its totient is φ = 467660344320.

The previous prime is 1212831695767. The next prime is 1212831695773. The reversal of 1212831695768 is 8675961382121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212831695767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10089128 + ... + 10208631.

It is an arithmetic number, because the mean of its divisors is an integer number (44756560800).

Almost surely, 2^{1212831695768} is an apocalyptic number.

It is an amenable number.

1212831695768 is an abundant number, since it is smaller than the sum of its proper divisors (1651588195432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212831695768 is a wasteful number, since it uses less digits than its factorization.

1212831695768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20297880 (or 20297876 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 59.

The spelling of 1212831695768 in words is "one trillion, two hundred twelve billion, eight hundred thirty-one million, six hundred ninety-five thousand, seven hundred sixty-eight".