1297224761472 has 96 divisors (see below), whose sum is σ = 3871155004080. Its totient is φ = 432408243456.

The previous prime is 1297224761467. The next prime is 1297224761537. The reversal of 1297224761472 is 2741674227921.

1297224761472 is a `hidden beast` number, since 1 + 2 + 9 + 7 + 22 + 476 + 147 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20821918 + ... + 20884125.

Almost surely, 2^{1297224761472} is an apocalyptic number.

1297224761472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1297224761472 is an abundant number, since it is smaller than the sum of its proper divisors (2573930242608).

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

1297224761472 is an frugal number, since it uses more digits than its factorization.

1297224761472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41706072 (or 41706048 counting only the distinct ones).

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

The spelling of 1297224761472 in words is "one trillion, two hundred ninety-seven billion, two hundred twenty-four million, seven hundred sixty-one thousand, four hundred seventy-two".