1297872800828 has 6 divisors (see below), whose sum is σ = 2271277401456. Its totient is φ = 648936400412.

The previous prime is 1297872800821. The next prime is 1297872800857. The reversal of 1297872800828 is 8280082787921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297872800821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162234100100 + ... + 162234100107.

It is an arithmetic number, because the mean of its divisors is an integer number (378546233576).

Almost surely, 2^{1297872800828} is an apocalyptic number.

It is an amenable number.

1297872800828 is a deficient number, since it is larger than the sum of its proper divisors (973404600628).

1297872800828 is a wasteful number, since it uses less digits than its factorization.

1297872800828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324468200211 (or 324468200209 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 62.

The spelling of 1297872800828 in words is "one trillion, two hundred ninety-seven billion, eight hundred seventy-two million, eight hundred thousand, eight hundred twenty-eight".