1273965331080 has 128 divisors (see below), whose sum is σ = 4124818494720. Its totient is φ = 312911047680.

The previous prime is 1273965331061. The next prime is 1273965331097. The reversal of 1273965331080 is 801335693721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166572 + ... + 1604891.

It is an arithmetic number, because the mean of its divisors is an integer number (32225144490).

Almost surely, 2^{1273965331080} is an apocalyptic number.

1273965331080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1273965331080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2062409247360).

1273965331080 is an abundant number, since it is smaller than the sum of its proper divisors (2850853163640).

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

1273965331080 is a wasteful number, since it uses less digits than its factorization.

1273965331080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771951 (or 1771947 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 1273965331080 in words is "one trillion, two hundred seventy-three billion, nine hundred sixty-five million, three hundred thirty-one thousand, eighty".