67909232124 has 144 divisors (see below), whose sum is σ = 180780920320. Its totient is φ = 21466892160.

The previous prime is 67909232117. The next prime is 67909232141. The reversal of 67909232124 is 42123290976.

It is a super-2 number, since 2×67909232124² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67909232124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36140217 + ... + 36142095.

Almost surely, 2^67909232124 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 67909232124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90390460160).

67909232124 is an abundant number, since it is smaller than the sum of its proper divisors (112871688196).

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

67909232124 is a wasteful number, since it uses less digits than its factorization.

67909232124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600 (or 2595 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 67909232124 in words is "sixty-seven billion, nine hundred nine million, two hundred thirty-two thousand, one hundred twenty-four".