1272982038784 has 72 divisors (see below), whose sum is σ = 2559023409600. Its totient is φ = 631977523200.

The previous prime is 1272982038773. The next prime is 1272982038803. The reversal of 1272982038784 is 4878302892721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140022079 + ... + 140031169.

It is an arithmetic number, because the mean of its divisors is an integer number (35541991800).

Almost surely, 2^{1272982038784} 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 1272982038784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279511704800).

1272982038784 is an abundant number, since it is smaller than the sum of its proper divisors (1286041370816).

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

1272982038784 is an equidigital number, since it uses as much as digits as its factorization.

1272982038784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12927 (or 12913 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 1272982038784 in words is "one trillion, two hundred seventy-two billion, nine hundred eighty-two million, thirty-eight thousand, seven hundred eighty-four".