67642512 has 80 divisors (see below), whose sum is σ = 205141632. Its totient is φ = 18800640.

The previous prime is 67642501. The next prime is 67642559. The reversal of 67642512 is 21524676.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9712 + ... + 15152.

Almost surely, 2^67642512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67642512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102570816).

67642512 is an abundant number, since it is smaller than the sum of its proper divisors (137499120).

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

67642512 is a wasteful number, since it uses less digits than its factorization.

67642512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496 (or 5490 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 67642512 is about 8224.5067937233. The cubic root of 67642512 is about 407.4489870527.

The spelling of 67642512 in words is "sixty-seven million, six hundred forty-two thousand, five hundred twelve".