1294170142720 has 384 divisors, whose sum is σ = 3830341132800. Its totient is φ = 408673714176.

The previous prime is 1294170142613. The next prime is 1294170142721. The reversal of 1294170142720 is 272410714921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1294170142721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509715211 + ... + 509717749.

It is an arithmetic number, because the mean of its divisors is an integer number (9974846700).

Almost surely, 2^{1294170142720} is an apocalyptic number.

1294170142720 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 1294170142720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1915170566400).

1294170142720 is an abundant number, since it is smaller than the sum of its proper divisors (2536170990080).

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

1294170142720 is a wasteful number, since it uses less digits than its factorization.

1294170142720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133 (or 3113 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 1294170142720 in words is "one trillion, two hundred ninety-four billion, one hundred seventy million, one hundred forty-two thousand, seven hundred twenty".