1273076851200 has 3840 divisors, whose sum is σ = 6172679208960. Its totient is φ = 222953472000.

The previous prime is 1273076851177. The next prime is 1273076851213. The reversal of 1273076851200 is 21586703721.

It is a tau number, because it is divible by the number of its divisors (3840).

It is a super-2 number, since 2×1273076851200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 383 ways as a sum of consecutive naturals, for example, 29606438379 + ... + 29606438421.

It is an arithmetic number, because the mean of its divisors is an integer number (1607468544).

Almost surely, 2^{1273076851200} is an apocalyptic number.

1273076851200 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 1273076851200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3086339604480).

1273076851200 is an abundant number, since it is smaller than the sum of its proper divisors (4899602357760).

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

1273076851200 is a wasteful number, since it uses less digits than its factorization.

1273076851200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 1273076851200 in words is "one trillion, two hundred seventy-three billion, seventy-six million, eight hundred fifty-one thousand, two hundred".