1272780225335 has 4 divisors (see below), whose sum is σ = 1527336270408. Its totient is φ = 1018224180264.

The previous prime is 1272780225331. The next prime is 1272780225397. The reversal of 1272780225335 is 5335220872721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1272780225335 - 2² = 1272780225331 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 1272780225335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272780225331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127278022529 + ... + 127278022538.

It is an arithmetic number, because the mean of its divisors is an integer number (381834067602).

Almost surely, 2^{1272780225335} is an apocalyptic number.

1272780225335 is a deficient number, since it is larger than the sum of its proper divisors (254556045073).

1272780225335 is an equidigital number, since it uses as much as digits as its factorization.

1272780225335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254556045072.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 1272780225335 in words is "one trillion, two hundred seventy-two billion, seven hundred eighty million, two hundred twenty-five thousand, three hundred thirty-five".