1297840751200 has 576 divisors, whose sum is σ = 3915937363968. Its totient is φ = 409935052800.

The previous prime is 1297840751197. The next prime is 1297840751201. The reversal of 1297840751200 is 21570487921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297840751201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1061193789 + ... + 1061195011.

It is an arithmetic number, because the mean of its divisors is an integer number (6798502368).

Almost surely, 2^{1297840751200} is an apocalyptic number.

1297840751200 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 1297840751200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957968681984).

1297840751200 is an abundant number, since it is smaller than the sum of its proper divisors (2618096612768).

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

1297840751200 is a wasteful number, since it uses less digits than its factorization.

1297840751200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 1297840751200 in words is "one trillion, two hundred ninety-seven billion, eight hundred forty million, seven hundred fifty-one thousand, two hundred".