67158346872 has 32 divisors (see below), whose sum is σ = 172433595600. Its totient is φ = 21781085184.

The previous prime is 67158346861. The next prime is 67158346877. The reversal of 67158346872 is 27864385176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67158346877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37813497 + ... + 37815272.

Almost surely, 2^67158346872 is an apocalyptic number.

It is an amenable number.

67158346872 is an abundant number, since it is smaller than the sum of its proper divisors (105275248728).

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

67158346872 is a wasteful number, since it uses less digits than its factorization.

67158346872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75628815 (or 75628811 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 67158346872 in words is "sixty-seven billion, one hundred fifty-eight million, three hundred forty-six thousand, eight hundred seventy-two".