1271266937877 has 8 divisors (see below), whose sum is σ = 1695041588320. Its totient is φ = 847501789680.

The previous prime is 1271266937861. The next prime is 1271266937879. The reversal of 1271266937877 is 7787396621721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1271266937877 - 2⁴ = 1271266937861 is a prime.

It is a super-2 number, since 2×1271266937877² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271266937879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057302 + ... + 2602887.

It is an arithmetic number, because the mean of its divisors is an integer number (211880198540).

Almost surely, 2^{1271266937877} is an apocalyptic number.

It is an amenable number.

1271266937877 is a deficient number, since it is larger than the sum of its proper divisors (423774650443).

1271266937877 is an equidigital number, since it uses as much as digits as its factorization.

1271266937877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751123.

The product of its digits is 74680704, while the sum is 66.

The spelling of 1271266937877 in words is "one trillion, two hundred seventy-one billion, two hundred sixty-six million, nine hundred thirty-seven thousand, eight hundred seventy-seven".