867457867122 has 162 divisors, whose sum is σ = 2404018998927. Its totient is φ = 225234702000.

The previous prime is 867457867121. The next prime is 867457867127. The reversal of 867457867122 is 221768754768.

It is a happy number.

867457867122 is a `hidden beast` number, since 86 + 7 + 457 + 86 + 7 + 1 + 22 = 666.

867457867122 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 433728933561 + 433728933561 = 658581^2 + 658581^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=658581.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 867457867122.

It is not an unprimeable number, because it can be changed into a prime (867457867121) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 304262997 + ... + 304265847.

Almost surely, 2^867457867122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867457867122

867457867122 is an abundant number, since it is smaller than the sum of its proper divisors (1536561131805).

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

867457867122 is a wasteful number, since it uses less digits than its factorization.

867457867122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5746 (or 2874 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 63.

The spelling of 867457867122 in words is "eight hundred sixty-seven billion, four hundred fifty-seven million, eight hundred sixty-seven thousand, one hundred twenty-two".