275952248647 has 4 divisors (see below), whose sum is σ = 275998162536. Its totient is φ = 275906334760.

The previous prime is 275952248603. The next prime is 275952248669. The reversal of 275952248647 is 746842259572.

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 275952248647 - 2¹⁹ = 275951724359 is a prime.

It is a super-2 number, since 2×275952248647² (a number of 24 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 (275952248147) 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, 22947928 + ... + 22959949.

It is an arithmetic number, because the mean of its divisors is an integer number (68999540634).

Almost surely, 2^275952248647 is an apocalyptic number.

275952248647 is a deficient number, since it is larger than the sum of its proper divisors (45913889).

275952248647 is an equidigital number, since it uses as much as digits as its factorization.

275952248647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45913888.

The product of its digits is 67737600, while the sum is 61.

The spelling of 275952248647 in words is "two hundred seventy-five billion, nine hundred fifty-two million, two hundred forty-eight thousand, six hundred forty-seven".