67564013772 has 48 divisors (see below), whose sum is σ = 160840415232. Its totient is φ = 22068995520.

The previous prime is 67564013771. The next prime is 67564013773. The reversal of 67564013772 is 27731046576.

It is an interprime number because it is at equal distance from previous prime (67564013771) and next prime (67564013773).

It is not an unprimeable number, because it can be changed into a prime (67564013771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66423 + ... + 373550.

It is an arithmetic number, because the mean of its divisors is an integer number (3350841984).

Almost surely, 2^67564013772 is an apocalyptic number.

It is an amenable number.

67564013772 is an abundant number, since it is smaller than the sum of its proper divisors (93276401460).

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

67564013772 is a wasteful number, since it uses less digits than its factorization.

67564013772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440238 (or 440236 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 48.

The spelling of 67564013772 in words is "sixty-seven billion, five hundred sixty-four million, thirteen thousand, seven hundred seventy-two".