67012906986 has 96 divisors (see below), whose sum is σ = 153680572800. Its totient is φ = 21644064000.

The previous prime is 67012906981. The next prime is 67012906991. The reversal of 67012906986 is 68960921076.

It is an interprime number because it is at equal distance from previous prime (67012906981) and next prime (67012906991).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (67012906981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13704430 + ... + 13709318.

It is an arithmetic number, because the mean of its divisors is an integer number (1600839300).

Almost surely, 2^67012906986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67012906986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76840286400).

67012906986 is an abundant number, since it is smaller than the sum of its proper divisors (86667665814).

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

67012906986 is a wasteful number, since it uses less digits than its factorization.

67012906986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133 (or 5086 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 67012906986 in words is "sixty-seven billion, twelve million, nine hundred six thousand, nine hundred eighty-six".