1275237181696 has 81 divisors (see below), whose sum is σ = 2567133980649. Its totient is φ = 632243294208.

The previous prime is 1275237181667. The next prime is 1275237181741. The reversal of 1275237181696 is 6961817325721.

The square root of 1275237181696 is 1129264.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 143004985600 + 1132232196096 = 378160^2 + 1064064^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1275237181696.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2945120296 + ... + 2945120728.

Almost surely, 2^{1275237181696} is an apocalyptic number.

1275237181696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1275237181696 is the 1129264-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1275237181696

1275237181696 is an abundant number, since it is smaller than the sum of its proper divisors (1291896798953).

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

1275237181696 is an frugal number, since it uses more digits than its factorization.

1275237181696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208 (or 598 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 58.

The spelling of 1275237181696 in words is "one trillion, two hundred seventy-five billion, two hundred thirty-seven million, one hundred eighty-one thousand, six hundred ninety-six".