1275258164268 has 96 divisors (see below), whose sum is σ = 3286519971840. Its totient is φ = 381635045440.

The previous prime is 1275258164237. The next prime is 1275258164287. The reversal of 1275258164268 is 8624618525721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29417113 + ... + 29460431.

It is an arithmetic number, because the mean of its divisors is an integer number (34234583040).

Almost surely, 2^{1275258164268} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1275258164268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643259985920).

1275258164268 is an abundant number, since it is smaller than the sum of its proper divisors (2011261807572).

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

1275258164268 is a wasteful number, since it uses less digits than its factorization.

1275258164268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46107 (or 46105 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 57.

The spelling of 1275258164268 in words is "one trillion, two hundred seventy-five billion, two hundred fifty-eight million, one hundred sixty-four thousand, two hundred sixty-eight".