812337579047 has 2 divisors, whose sum is σ = 812337579048. Its totient is φ = 812337579046.

The previous prime is 812337578963. The next prime is 812337579083. The reversal of 812337579047 is 740975733218.

It is a happy number.

812337579047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812337579047 - 2¹⁰ = 812337578023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 812337578983 and 812337579001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812337579847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406168789523 + 406168789524.

It is an arithmetic number, because the mean of its divisors is an integer number (406168789524).

Almost surely, 2^812337579047 is an apocalyptic number.

812337579047 is a deficient number, since it is larger than the sum of its proper divisors (1).

812337579047 is an equidigital number, since it uses as much as digits as its factorization.

812337579047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 812337579047 in words is "eight hundred twelve billion, three hundred thirty-seven million, five hundred seventy-nine thousand, forty-seven".