1275328276842 has 32 divisors (see below), whose sum is σ = 2576064280320. Its totient is φ = 420875307200.

The previous prime is 1275328276837. The next prime is 1275328276843. The reversal of 1275328276842 is 2486728235721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1275328276843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12018088 + ... + 12123740.

It is an arithmetic number, because the mean of its divisors is an integer number (80502008760).

Almost surely, 2^{1275328276842} is an apocalyptic number.

1275328276842 is an abundant number, since it is smaller than the sum of its proper divisors (1300736003478).

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

1275328276842 is a wasteful number, since it uses less digits than its factorization.

1275328276842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125678.

The product of its digits is 18063360, while the sum is 57.

The spelling of 1275328276842 in words is "one trillion, two hundred seventy-five billion, three hundred twenty-eight million, two hundred seventy-six thousand, eight hundred forty-two".