275512221763643 has 4 divisors (see below), whose sum is σ = 275731055936280. Its totient is φ = 275293387591008.

The previous prime is 275512221763613. The next prime is 275512221763657. The reversal of 275512221763643 is 346367122215572.

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 275512221763643 - 2²⁸ = 275511953328187 is a prime.

It is a super-2 number, since 2×275512221763643² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275512221763613) 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, 109417084430 + ... + 109417086947.

It is an arithmetic number, because the mean of its divisors is an integer number (68932763984070).

Almost surely, 2^{275512221763643} is an apocalyptic number.

275512221763643 is a deficient number, since it is larger than the sum of its proper divisors (218834172637).

275512221763643 is a wasteful number, since it uses less digits than its factorization.

275512221763643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218834172636.

The product of its digits is 25401600, while the sum is 56.

The spelling of 275512221763643 in words is "two hundred seventy-five trillion, five hundred twelve billion, two hundred twenty-one million, seven hundred sixty-three thousand, six hundred forty-three".