1274215945868 has 24 divisors (see below), whose sum is σ = 2320583277600. Its totient is φ = 611455257728.

The previous prime is 1274215945867. The next prime is 1274215945879. The reversal of 1274215945868 is 8685495124721.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1274215945868.

It is not an unprimeable number, because it can be changed into a prime (1274215945867) 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 7 ways as a sum of consecutive naturals, for example, 32868713 + ... + 32907456.

It is an arithmetic number, because the mean of its divisors is an integer number (96690969900).

Almost surely, 2^{1274215945868} is an apocalyptic number.

It is an amenable number.

1274215945868 is a deficient number, since it is larger than the sum of its proper divisors (1046367331732).

1274215945868 is a wasteful number, since it uses less digits than its factorization.

1274215945868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65776369 (or 65776367 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 62.

The spelling of 1274215945868 in words is "one trillion, two hundred seventy-four billion, two hundred fifteen million, nine hundred forty-five thousand, eight hundred sixty-eight".