1272837405347 has 4 divisors (see below), whose sum is σ = 1273514808720. Its totient is φ = 1272160001976.

The previous prime is 1272837405337. The next prime is 1272837405349. The reversal of 1272837405347 is 7435047382721.

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 1272837405347 - 2¹⁰ = 1272837404323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272837405349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338698868 + ... + 338702625.

It is an arithmetic number, because the mean of its divisors is an integer number (318378702180).

Almost surely, 2^{1272837405347} is an apocalyptic number.

1272837405347 is a deficient number, since it is larger than the sum of its proper divisors (677403373).

1272837405347 is an equidigital number, since it uses as much as digits as its factorization.

1272837405347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677403372.

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 1272837405347 in words is "one trillion, two hundred seventy-two billion, eight hundred thirty-seven million, four hundred five thousand, three hundred forty-seven".