1294940226560 has 88 divisors (see below), whose sum is σ = 3114996212160. Its totient is φ = 516532527104.

The previous prime is 1294940226553. The next prime is 1294940226589. The reversal of 1294940226560 is 656220494921.

It is a junction number, because it is equal to n+sod(n) for n = 1294940226499 and 1294940226508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1485827 + ... + 2190333.

Almost surely, 2^{1294940226560} is an apocalyptic number.

1294940226560 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 1294940226560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557498106080).

1294940226560 is an abundant number, since it is smaller than the sum of its proper divisors (1820055985600).

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

1294940226560 is an equidigital number, since it uses as much as digits as its factorization.

1294940226560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704891 (or 704873 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 1294940226560 in words is "one trillion, two hundred ninety-four billion, nine hundred forty million, two hundred twenty-six thousand, five hundred sixty".