1284491212800 has 144 divisors (see below), whose sum is σ = 4246347825720. Its totient is φ = 342530949120.

The previous prime is 1284491212799. The next prime is 1284491212877. The reversal of 1284491212800 is 82121944821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4027687 + ... + 4334886.

Almost surely, 2^{1284491212800} is an apocalyptic number.

1284491212800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1284491212800 is an abundant number, since it is smaller than the sum of its proper divisors (2961856612920).

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

1284491212800 is an equidigital number, since it uses as much as digits as its factorization.

1284491212800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8362608 (or 8362583 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The spelling of 1284491212800 in words is "one trillion, two hundred eighty-four billion, four hundred ninety-one million, two hundred twelve thousand, eight hundred".