1272870910909 has 16 divisors (see below), whose sum is σ = 1381351688640. Its totient is φ = 1165901143680.

The previous prime is 1272870910897. The next prime is 1272870910963. The reversal of 1272870910909 is 9090190782721.

It is not a de Polignac number, because 1272870910909 - 2⁵ = 1272870910877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1272870910909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272870910009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37137222 + ... + 37171480.

It is an arithmetic number, because the mean of its divisors is an integer number (86334480540).

Almost surely, 2^{1272870910909} is an apocalyptic number.

It is an amenable number.

1272870910909 is a deficient number, since it is larger than the sum of its proper divisors (108480777731).

1272870910909 is a wasteful number, since it uses less digits than its factorization.

1272870910909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56220.

The product of its (nonzero) digits is 1143072, while the sum is 55.

The spelling of 1272870910909 in words is "one trillion, two hundred seventy-two billion, eight hundred seventy million, nine hundred ten thousand, nine hundred nine".