67121575352 has 32 divisors (see below), whose sum is σ = 135577411200. Its totient is φ = 30969254784.

The previous prime is 67121575223. The next prime is 67121575361. The reversal of 67121575352 is 25357512176.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227474 + ... + 431262.

It is an arithmetic number, because the mean of its divisors is an integer number (4236794100).

Almost surely, 2^67121575352 is an apocalyptic number.

It is an amenable number.

67121575352 is an abundant number, since it is smaller than the sum of its proper divisors (68455835848).

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

67121575352 is a wasteful number, since it uses less digits than its factorization.

67121575352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206975 (or 206971 counting only the distinct ones).

The product of its digits is 441000, while the sum is 44.

The spelling of 67121575352 in words is "sixty-seven billion, one hundred twenty-one million, five hundred seventy-five thousand, three hundred fifty-two".