67548525408 has 144 divisors (see below), whose sum is σ = 236419930656. Its totient is φ = 17814988800.

The previous prime is 67548525403. The next prime is 67548525419. The reversal of 67548525408 is 80452584576.

67548525408 is a `hidden beast` number, since 6 + 7 + 5 + 48 + 52 + 540 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67548525403) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1262493 + ... + 1314908.

It is an arithmetic number, because the mean of its divisors is an integer number (1641805074).

Almost surely, 2^67548525408 is an apocalyptic number.

It is an amenable number.

67548525408 is an abundant number, since it is smaller than the sum of its proper divisors (168871405248).

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

67548525408 is a wasteful number, since it uses less digits than its factorization.

67548525408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577437 (or 2577426 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 54.

The spelling of 67548525408 in words is "sixty-seven billion, five hundred forty-eight million, five hundred twenty-five thousand, four hundred eight".