812278048734 has 24 divisors (see below), whose sum is σ = 1784044484352. Its totient is φ = 267050316960.

The previous prime is 812278048721. The next prime is 812278048753. The reversal of 812278048734 is 437840872218.

812278048734 is a `hidden beast` number, since 8 + 122 + 7 + 8 + 0 + 487 + 34 = 666.

It is a super-2 number, since 2×812278048734² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309084702 + ... + 309087329.

It is an arithmetic number, because the mean of its divisors is an integer number (74335186848).

Almost surely, 2^812278048734 is an apocalyptic number.

812278048734 is an abundant number, since it is smaller than the sum of its proper divisors (971766435618).

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

812278048734 is a wasteful number, since it uses less digits than its factorization.

812278048734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618172112 (or 618172109 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 812278048734 in words is "eight hundred twelve billion, two hundred seventy-eight million, forty-eight thousand, seven hundred thirty-four".