275642653806 has 40 divisors (see below), whose sum is σ = 665154785064. Its totient is φ = 84813123600.

The previous prime is 275642653799. The next prime is 275642653831. The reversal of 275642653806 is 608356246572.

275642653806 is a `hidden beast` number, since 2 + 7 + 564 + 26 + 53 + 8 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65440120 + ... + 65444331.

Almost surely, 2^275642653806 is an apocalyptic number.

275642653806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

275642653806 is an abundant number, since it is smaller than the sum of its proper divisors (389512131258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275642653806 is a wasteful number, since it uses less digits than its factorization.

275642653806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130884478 (or 130884469 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 54.

The spelling of 275642653806 in words is "two hundred seventy-five billion, six hundred forty-two million, six hundred fifty-three thousand, eight hundred six".