1294793543680 has 832 divisors, whose sum is σ = 3975815467008. Its totient is φ = 393884467200.

The previous prime is 1294793543651. The next prime is 1294793543773. The reversal of 1294793543680 is 863453974921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (832).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8574791605 + ... + 8574791755.

It is a 1-persistent number, because it is pandigital, but 2⋅1294793543680 = 2589587087360 is not.

Almost surely, 2^{1294793543680} is an apocalyptic number.

1294793543680 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 1294793543680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1987907733504).

1294793543680 is an abundant number, since it is smaller than the sum of its proper divisors (2681021923328).

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

1294793543680 is a wasteful number, since it uses less digits than its factorization.

1294793543680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 1294793543680 in words is "one trillion, two hundred ninety-four billion, seven hundred ninety-three million, five hundred forty-three thousand, six hundred eighty".