1270971647800 has 96 divisors (see below), whose sum is σ = 2975809536000. Its totient is φ = 504820356480.

The previous prime is 1270971647797. The next prime is 1270971647809. The reversal of 1270971647800 is 87461790721.

It is a super-2 number, since 2×1270971647800² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270971647809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19987657 + ... + 20051143.

It is an arithmetic number, because the mean of its divisors is an integer number (30998016000).

Almost surely, 2^{1270971647800} is an apocalyptic number.

1270971647800 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 1270971647800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1487904768000).

1270971647800 is an abundant number, since it is smaller than the sum of its proper divisors (1704837888200).

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

1270971647800 is a wasteful number, since it uses less digits than its factorization.

1270971647800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64205 (or 64196 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 52.

The spelling of 1270971647800 in words is "one trillion, two hundred seventy billion, nine hundred seventy-one million, six hundred forty-seven thousand, eight hundred".