1272856117060 has 48 divisors (see below), whose sum is σ = 2917178030592. Its totient is φ = 462669408000.

The previous prime is 1272856117019. The next prime is 1272856117069. The reversal of 1272856117060 is 607116582721.

It is a self number, because there is not a number n which added to its sum of digits gives 1272856117060.

It is not an unprimeable number, because it can be changed into a prime (1272856117069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625716 + ... + 1713835.

It is an arithmetic number, because the mean of its divisors is an integer number (60774542304).

Almost surely, 2^{1272856117060} is an apocalyptic number.

1272856117060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1272856117060 is an abundant number, since it is smaller than the sum of its proper divisors (1644321913532).

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

1272856117060 is a wasteful number, since it uses less digits than its factorization.

1272856117060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342044 (or 2342042 counting only the distinct ones).

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

The spelling of 1272856117060 in words is "one trillion, two hundred seventy-two billion, eight hundred fifty-six million, one hundred seventeen thousand, sixty".