812442027775 has 48 divisors (see below), whose sum is σ = 1264636915200. Its totient is φ = 504834802560.

The previous prime is 812442027751. The next prime is 812442027841. The reversal of 812442027775 is 577720244218.

It is not a de Polignac number, because 812442027775 - 2¹¹ = 812442025727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5235340 + ... + 5388289.

It is an arithmetic number, because the mean of its divisors is an integer number (26346602400).

Almost surely, 2^812442027775 is an apocalyptic number.

812442027775 is a deficient number, since it is larger than the sum of its proper divisors (452194887425).

812442027775 is a wasteful number, since it uses less digits than its factorization.

812442027775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10623688 (or 10623683 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 49.

The spelling of 812442027775 in words is "eight hundred twelve billion, four hundred forty-two million, twenty-seven thousand, seven hundred seventy-five".