1275783261088 has 96 divisors (see below), whose sum is σ = 2942177140224. Its totient is φ = 533197873152.

The previous prime is 1275783261083. The next prime is 1275783261089. The reversal of 1275783261088 is 8801623875721.

It is not an unprimeable number, because it can be changed into a prime (1275783261083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2697520 + ... + 3134992.

It is an arithmetic number, because the mean of its divisors is an integer number (30647678544).

Almost surely, 2^{1275783261088} 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 1275783261088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1471088570112).

1275783261088 is an abundant number, since it is smaller than the sum of its proper divisors (1666393879136).

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

1275783261088 is a wasteful number, since it uses less digits than its factorization.

1275783261088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437814 (or 437806 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 1275783261088 in words is "one trillion, two hundred seventy-five billion, seven hundred eighty-three million, two hundred sixty-one thousand, eighty-eight".