1217244128496 has 80 divisors (see below), whose sum is σ = 3436067601408. Its totient is φ = 368254080000.

The previous prime is 1217244128467. The next prime is 1217244128537. The reversal of 1217244128496 is 6948214427121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1578505 + ... + 2219496.

Almost surely, 2^{1217244128496} is an apocalyptic number.

1217244128496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1217244128496 is an abundant number, since it is smaller than the sum of its proper divisors (2218823472912).

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

1217244128496 is a wasteful number, since it uses less digits than its factorization.

1217244128496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798630 (or 3798624 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The spelling of 1217244128496 in words is "one trillion, two hundred seventeen billion, two hundred forty-four million, one hundred twenty-eight thousand, four hundred ninety-six".