67312528632 has 80 divisors (see below), whose sum is σ = 188666897760. Its totient is φ = 22422099456.

The previous prime is 67312528607. The next prime is 67312528637. The reversal of 67312528632 is 23682521376.

67312528632 is a `hidden beast` number, since 6 + 7 + 3 + 1 + 2 + 5 + 2 + 8 + 632 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67312528637) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 928648 + ... + 998504.

It is an arithmetic number, because the mean of its divisors is an integer number (2358336222).

Almost surely, 2^67312528632 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 67312528632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94333448880).

67312528632 is an abundant number, since it is smaller than the sum of its proper divisors (121354369128).

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

67312528632 is a wasteful number, since it uses less digits than its factorization.

67312528632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71362 (or 71349 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 67312528632 in words is "sixty-seven billion, three hundred twelve million, five hundred twenty-eight thousand, six hundred thirty-two".