67212046672 has 40 divisors (see below), whose sum is σ = 132822960840. Its totient is φ = 32936517120.

The previous prime is 67212046663. The next prime is 67212046703. The reversal of 67212046672 is 27664021276.

It can be written as a sum of positive squares in 4 ways, for example, as 6042885696 + 61169160976 = 77736^2 + 247324^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755854 + ... + 840082.

It is an arithmetic number, because the mean of its divisors is an integer number (3320574021).

Almost surely, 2^67212046672 is an apocalyptic number.

It is an amenable number.

67212046672 is a deficient number, since it is larger than the sum of its proper divisors (65610914168).

67212046672 is a wasteful number, since it uses less digits than its factorization.

67212046672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85231 (or 85225 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 67212046672 in words is "sixty-seven billion, two hundred twelve million, forty-six thousand, six hundred seventy-two".