867786941085912 has 80 divisors (see below), whose sum is σ = 2430694426974000. Its totient is φ = 289251902197440.

The previous prime is 867786941085847. The next prime is 867786941085931. The reversal of 867786941085912 is 219580149687768.

867786941085912 is a `hidden beast` number, since 8 + 6 + 7 + 7 + 8 + 6 + 9 + 4 + 10 + 8 + 591 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6073039 + ... + 42100542.

It is an arithmetic number, because the mean of its divisors is an integer number (30383680337175).

Almost surely, 2^{867786941085912} is an apocalyptic number.

It is an amenable number.

867786941085912 is an abundant number, since it is smaller than the sum of its proper divisors (1562907485888088).

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

867786941085912 is a wasteful number, since it uses less digits than its factorization.

867786941085912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48201398 (or 48201385 counting only the distinct ones).

The product of its (nonzero) digits is 2926264320, while the sum is 81.

The spelling of 867786941085912 in words is "eight hundred sixty-seven trillion, seven hundred eighty-six billion, nine hundred forty-one million, eighty-five thousand, nine hundred twelve".