275285456465 has 32 divisors (see below), whose sum is σ = 380060605440. Its totient is φ = 190030233600.

The previous prime is 275285456461. The next prime is 275285456471. The reversal of 275285456465 is 564654582572.

It is not a de Polignac number, because 275285456465 - 2² = 275285456461 is a prime.

It is a super-2 number, since 2×275285456465² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275285456461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2699216 + ... + 2799345.

It is an arithmetic number, because the mean of its divisors is an integer number (11876893920).

Almost surely, 2^275285456465 is an apocalyptic number.

It is an amenable number.

275285456465 is a deficient number, since it is larger than the sum of its proper divisors (104775148975).

275285456465 is a wasteful number, since it uses less digits than its factorization.

275285456465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5498633.

The product of its digits is 80640000, while the sum is 59.

The spelling of 275285456465 in words is "two hundred seventy-five billion, two hundred eighty-five million, four hundred fifty-six thousand, four hundred sixty-five".