847623161540 has 12 divisors (see below), whose sum is σ = 1780008639276. Its totient is φ = 339049264608.

The previous prime is 847623161537. The next prime is 847623161617. The reversal of 847623161540 is 45161326748.

It can be written as a sum of positive squares in 2 ways, for example, as 134284136704 + 713339024836 = 366448^2 + 844594^2 .

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 3 ways as a sum of consecutive naturals, for example, 21190579019 + ... + 21190579058.

It is an arithmetic number, because the mean of its divisors is an integer number (148334053273).

Almost surely, 2^847623161540 is an apocalyptic number.

It is an amenable number.

847623161540 is an abundant number, since it is smaller than the sum of its proper divisors (932385477736).

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

847623161540 is a wasteful number, since it uses less digits than its factorization.

847623161540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42381158086 (or 42381158084 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 847623161540 in words is "eight hundred forty-seven billion, six hundred twenty-three million, one hundred sixty-one thousand, five hundred forty".