275805780806 has 4 divisors (see below), whose sum is σ = 413708671212. Its totient is φ = 137902890402.

The previous prime is 275805780793. The next prime is 275805780869. The reversal of 275805780806 is 608087508572.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68951445200 + ... + 68951445203.

It is an arithmetic number, because the mean of its divisors is an integer number (103427167803).

Almost surely, 2^275805780806 is an apocalyptic number.

275805780806 is a deficient number, since it is larger than the sum of its proper divisors (137902890406).

275805780806 is a wasteful number, since it uses less digits than its factorization.

275805780806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137902890405.

The product of its (nonzero) digits is 7526400, while the sum is 56.

The spelling of 275805780806 in words is "two hundred seventy-five billion, eight hundred five million, seven hundred eighty thousand, eight hundred six".