1271680786200 has 192 divisors, whose sum is σ = 4342348857600. Its totient is φ = 305293017600.

The previous prime is 1271680786163. The next prime is 1271680786217. The reversal of 1271680786200 is 26870861721.

It is a super-2 number, since 2×1271680786200² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1271680786200.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 255535 + ... + 1615134.

It is an arithmetic number, because the mean of its divisors is an integer number (22616400300).

Almost surely, 2^{1271680786200} is an apocalyptic number.

1271680786200 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 1271680786200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2171174428800).

1271680786200 is an abundant number, since it is smaller than the sum of its proper divisors (3070668071400).

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

1271680786200 is a wasteful number, since it uses less digits than its factorization.

1271680786200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870802 (or 1870793 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 1271680786200 in words is "one trillion, two hundred seventy-one billion, six hundred eighty million, seven hundred eighty-six thousand, two hundred".