818681156312 has 64 divisors (see below), whose sum is σ = 1572347462400. Its totient is φ = 399515529600.

The previous prime is 818681156311. The next prime is 818681156341. The reversal of 818681156312 is 213651186818.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818681156311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31471103 + ... + 31497105.

It is an arithmetic number, because the mean of its divisors is an integer number (24567929100).

Almost surely, 2^818681156312 is an apocalyptic number.

It is an amenable number.

818681156312 is a deficient number, since it is larger than the sum of its proper divisors (753666306088).

818681156312 is a wasteful number, since it uses less digits than its factorization.

818681156312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26616 (or 26612 counting only the distinct ones).

The product of its digits is 552960, while the sum is 50.

The spelling of 818681156312 in words is "eight hundred eighteen billion, six hundred eighty-one million, one hundred fifty-six thousand, three hundred twelve".