1294037472780 has 1152 divisors, whose sum is σ = 4805703302400. Its totient is φ = 278691840000.

The previous prime is 1294037472743. The next prime is 1294037472781. The reversal of 1294037472780 is 872747304921.

1294037472780 is a `hidden beast` number, since 1 + 2 + 94 + 0 + 3 + 7 + 472 + 7 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (1294037472781) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5155527655 + ... + 5155527905.

It is an arithmetic number, because the mean of its divisors is an integer number (4171617450).

Almost surely, 2^{1294037472780} is an apocalyptic number.

1294037472780 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 1294037472780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2402851651200).

1294037472780 is an abundant number, since it is smaller than the sum of its proper divisors (3511665829620).

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

1294037472780 is a wasteful number, since it uses less digits than its factorization.

1294037472780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 1294037472780 in words is "one trillion, two hundred ninety-four billion, thirty-seven million, four hundred seventy-two thousand, seven hundred eighty".