812748267655 has 8 divisors (see below), whose sum is σ = 975376794672. Its totient is φ = 650146031808.

The previous prime is 812748267641. The next prime is 812748267671. The reversal of 812748267655 is 556762847218.

812748267655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 812748267655 - 2¹⁷ = 812748136583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 812748267593 and 812748267602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6504717 + ... + 6628486.

It is an arithmetic number, because the mean of its divisors is an integer number (121922099334).

Almost surely, 2^812748267655 is an apocalyptic number.

812748267655 is a deficient number, since it is larger than the sum of its proper divisors (162628527017).

812748267655 is a wasteful number, since it uses less digits than its factorization.

812748267655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13145585.

The product of its digits is 45158400, while the sum is 61.

The spelling of 812748267655 in words is "eight hundred twelve billion, seven hundred forty-eight million, two hundred sixty-seven thousand, six hundred fifty-five".