1272888028292 has 12 divisors (see below), whose sum is σ = 2227565712540. Its totient is φ = 636440681856.

The previous prime is 1272888028289. The next prime is 1272888028331. The reversal of 1272888028292 is 2928208882721.

It can be written as a sum of positive squares in 2 ways, for example, as 1066539514756 + 206348513536 = 1032734^2 + 454256^2 .

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 3 ways as a sum of consecutive naturals, for example, 157184 + ... + 1603272.

It is an arithmetic number, because the mean of its divisors is an integer number (185630476045).

Almost surely, 2^{1272888028292} is an apocalyptic number.

It is an amenable number.

1272888028292 is a deficient number, since it is larger than the sum of its proper divisors (954677684248).

1272888028292 is a wasteful number, since it uses less digits than its factorization.

1272888028292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666150 (or 1666148 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 59.

The spelling of 1272888028292 in words is "one trillion, two hundred seventy-two billion, eight hundred eighty-eight million, twenty-eight thousand, two hundred ninety-two".