67392812680 has 16 divisors (see below), whose sum is σ = 151633828620. Its totient is φ = 26957125056.

The previous prime is 67392812633. The next prime is 67392812689. The reversal of 67392812680 is 8621829376.

It can be written as a sum of positive squares in 2 ways, for example, as 54510108676 + 12882704004 = 233474^2 + 113502^2 .

It is not an unprimeable number, because it can be changed into a prime (67392812689) 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 3 ways as a sum of consecutive naturals, for example, 842410119 + ... + 842410198.

Almost surely, 2^67392812680 is an apocalyptic number.

It is an amenable number.

67392812680 is an abundant number, since it is smaller than the sum of its proper divisors (84241015940).

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

67392812680 is a wasteful number, since it uses less digits than its factorization.

67392812680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684820328 (or 1684820324 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 67392812680 in words is "sixty-seven billion, three hundred ninety-two million, eight hundred twelve thousand, six hundred eighty".