1271895806423 has 8 divisors (see below), whose sum is σ = 1387536276096. Its totient is φ = 1156257599800.

The previous prime is 1271895806339. The next prime is 1271895806429. The reversal of 1271895806423 is 3246085981721.

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

It is a cyclic number.

It is not a de Polignac number, because 1271895806423 - 2¹⁰ = 1271895805399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271895806429) 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, 740540 + ... + 1758462.

It is an arithmetic number, because the mean of its divisors is an integer number (173442034512).

It is a 1-persistent number, because it is pandigital, but 2⋅1271895806423 = 2543791612846 is not.

Almost surely, 2^{1271895806423} is an apocalyptic number.

1271895806423 is a deficient number, since it is larger than the sum of its proper divisors (115640469673).

1271895806423 is a wasteful number, since it uses less digits than its factorization.

1271895806423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131525.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 1271895806423 in words is "one trillion, two hundred seventy-one billion, eight hundred ninety-five million, eight hundred six thousand, four hundred twenty-three".