1286471572992 has 160 divisors (see below), whose sum is σ = 3847307402400. Its totient is φ = 424402550784.

The previous prime is 1286471572979. The next prime is 1286471573011. The reversal of 1286471572992 is 2992751746821.

1286471572992 is a `hidden beast` number, since 1 + 2 + 8 + 6 + 471 + 5 + 72 + 9 + 92 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861234 + ... + 1820622.

It is an arithmetic number, because the mean of its divisors is an integer number (24045671265).

Almost surely, 2^{1286471572992} is an apocalyptic number.

1286471572992 is a gapful number since it is divisible by the number (12) 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 1286471572992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923653701200).

1286471572992 is an abundant number, since it is smaller than the sum of its proper divisors (2560835829408).

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

1286471572992 is an frugal number, since it uses more digits than its factorization.

1286471572992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959513 (or 959491 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 1286471572992 in words is "one trillion, two hundred eighty-six billion, four hundred seventy-one million, five hundred seventy-two thousand, nine hundred ninety-two".