275215346427 has 48 divisors (see below), whose sum is σ = 449567919360. Its totient is φ = 148910263488.

The previous prime is 275215346423. The next prime is 275215346437. The reversal of 275215346427 is 724643512572.

It is not a de Polignac number, because 275215346427 - 2² = 275215346423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275215346423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5485618 + ... + 5535560.

It is an arithmetic number, because the mean of its divisors is an integer number (9365998320).

Almost surely, 2^275215346427 is an apocalyptic number.

275215346427 is a deficient number, since it is larger than the sum of its proper divisors (174352572933).

275215346427 is a wasteful number, since it uses less digits than its factorization.

275215346427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51952 (or 51945 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 48.

Adding to 275215346427 its reverse (724643512572), we get a palindrome (999858858999).

The spelling of 275215346427 in words is "two hundred seventy-five billion, two hundred fifteen million, three hundred forty-six thousand, four hundred twenty-seven".