1294307866872 has 96 divisors (see below), whose sum is σ = 3564000364080. Its totient is φ = 424230151680.

The previous prime is 1294307866759. The next prime is 1294307866889. The reversal of 1294307866872 is 2786687034921.

1294307866872 is a `hidden beast` number, since 1 + 2 + 9 + 430 + 78 + 6 + 68 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14479788 + ... + 14568900.

Almost surely, 2^{1294307866872} is an apocalyptic number.

1294307866872 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 1294307866872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782000182040).

1294307866872 is an abundant number, since it is smaller than the sum of its proper divisors (2269692497208).

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

1294307866872 is a wasteful number, since it uses less digits than its factorization.

1294307866872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92493 (or 92486 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 1294307866872 in words is "one trillion, two hundred ninety-four billion, three hundred seven million, eight hundred sixty-six thousand, eight hundred seventy-two".