1272085695271 has 4 divisors (see below), whose sum is σ = 1272216564544. Its totient is φ = 1271954826000.

The previous prime is 1272085695121. The next prime is 1272085695341. The reversal of 1272085695271 is 1725965802721.

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 1272085695271 - 2²³ = 1272077306663 is a prime.

It is a super-2 number, since 2×1272085695271² (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 (1272085693271) 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, 65420055 + ... + 65439496.

It is an arithmetic number, because the mean of its divisors is an integer number (318054141136).

Almost surely, 2^{1272085695271} is an apocalyptic number.

1272085695271 is a deficient number, since it is larger than the sum of its proper divisors (130869273).

1272085695271 is an equidigital number, since it uses as much as digits as its factorization.

1272085695271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130869272.

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 1272085695271 in words is "one trillion, two hundred seventy-two billion, eighty-five million, six hundred ninety-five thousand, two hundred seventy-one".