127632786265 has 4 divisors (see below), whose sum is σ = 153159343524. Its totient is φ = 102106229008.

The previous prime is 127632786191. The next prime is 127632786283. The reversal of 127632786265 is 562687236721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562687236721 = 639703 ⋅879607.

It can be written as a sum of positive squares in 2 ways, for example, as 70275889216 + 57356897049 = 265096^2 + 239493^2 .

It is a cyclic number.

It is not a de Polignac number, because 127632786265 - 2¹³ = 127632778073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12763278622 + ... + 12763278631.

It is an arithmetic number, because the mean of its divisors is an integer number (38289835881).

Almost surely, 2^127632786265 is an apocalyptic number.

It is an amenable number.

127632786265 is a deficient number, since it is larger than the sum of its proper divisors (25526557259).

127632786265 is an equidigital number, since it uses as much as digits as its factorization.

127632786265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25526557258.

The product of its digits is 10160640, while the sum is 55.

The spelling of 127632786265 in words is "one hundred twenty-seven billion, six hundred thirty-two million, seven hundred eighty-six thousand, two hundred sixty-five".