67640462384 has 40 divisors (see below), whose sum is σ = 150491945280. Its totient is φ = 29127470400.

The previous prime is 67640462339. The next prime is 67640462413. The reversal of 67640462384 is 48326404676.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10110362 + ... + 10117049.

It is an arithmetic number, because the mean of its divisors is an integer number (3762298632).

Almost surely, 2^67640462384 is an apocalyptic number.

It is an amenable number.

67640462384 is an abundant number, since it is smaller than the sum of its proper divisors (82851482896).

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

67640462384 is a wasteful number, since it uses less digits than its factorization.

67640462384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20227449 (or 20227443 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 50.

The spelling of 67640462384 in words is "sixty-seven billion, six hundred forty million, four hundred sixty-two thousand, three hundred eighty-four".