67423439232 has 64 divisors (see below), whose sum is σ = 198992799600. Its totient is φ = 22474478592.

The previous prime is 67423439231. The next prime is 67423439233. The reversal of 67423439232 is 23293432476.

67423439232 is a `hidden beast` number, since 6 + 74 + 2 + 343 + 9 + 232 = 666.

It is an interprime number because it is at equal distance from previous prime (67423439231) and next prime (67423439233).

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67423439231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9751093 + ... + 9758004.

Almost surely, 2^67423439232 is an apocalyptic number.

It is an amenable number.

67423439232 is an abundant number, since it is smaller than the sum of its proper divisors (131569360368).

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

67423439232 is a wasteful number, since it uses less digits than its factorization.

67423439232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19509120 (or 19509102 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 45.

The spelling of 67423439232 in words is "sixty-seven billion, four hundred twenty-three million, four hundred thirty-nine thousand, two hundred thirty-two".