1276880370212 has 12 divisors (see below), whose sum is σ = 2294933638620. Its totient is φ = 621185044896.

The previous prime is 1276880370173. The next prime is 1276880370239. The reversal of 1276880370212 is 2120730886721.

It can be written as a sum of positive squares in 2 ways, for example, as 698404518436 + 578475851776 = 835706^2 + 760576^2 .

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 3 ways as a sum of consecutive naturals, for example, 4313784887 + ... + 4313785182.

It is an arithmetic number, because the mean of its divisors is an integer number (191244469885).

Almost surely, 2^{1276880370212} is an apocalyptic number.

It is an amenable number.

1276880370212 is a deficient number, since it is larger than the sum of its proper divisors (1018053268408).

1276880370212 is a wasteful number, since it uses less digits than its factorization.

1276880370212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8627570110 (or 8627570108 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 1276880370212 in words is "one trillion, two hundred seventy-six billion, eight hundred eighty million, three hundred seventy thousand, two hundred twelve".