27275481831 has 16 divisors (see below), whose sum is σ = 39168543456. Its totient is φ = 16783305216.

The previous prime is 27275481817. The next prime is 27275481859. The reversal of 27275481831 is 13818457272.

It is not a de Polignac number, because 27275481831 - 2¹⁰ = 27275480807 is a prime.

It is a super-2 number, since 2×27275481831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27275481811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478171 + ... + 532163.

It is an arithmetic number, because the mean of its divisors is an integer number (2448033966).

Almost surely, 2^27275481831 is an apocalyptic number.

27275481831 is a deficient number, since it is larger than the sum of its proper divisors (11893061625).

27275481831 is a wasteful number, since it uses less digits than its factorization.

27275481831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66962.

The product of its digits is 752640, while the sum is 48.

The spelling of 27275481831 in words is "twenty-seven billion, two hundred seventy-five million, four hundred eighty-one thousand, eight hundred thirty-one".