1276854645955 has 16 divisors (see below), whose sum is σ = 1751394484224. Its totient is φ = 875417700960.

The previous prime is 1276854645893. The next prime is 1276854646007. The reversal of 1276854645955 is 5595464586721.

It is not a de Polignac number, because 1276854645955 - 2¹⁷ = 1276854514883 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2689267 + ... + 3128236.

It is an arithmetic number, because the mean of its divisors is an integer number (109462155264).

Almost surely, 2^{1276854645955} is an apocalyptic number.

1276854645955 is a deficient number, since it is larger than the sum of its proper divisors (474539838269).

1276854645955 is an equidigital number, since it uses as much as digits as its factorization.

1276854645955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823786.

The product of its digits is 362880000, while the sum is 67.

The spelling of 1276854645955 in words is "one trillion, two hundred seventy-six billion, eight hundred fifty-four million, six hundred forty-five thousand, nine hundred fifty-five".