67774172632 has 16 divisors (see below), whose sum is σ = 127082456640. Its totient is φ = 33885517536.

The previous prime is 67774172621. The next prime is 67774172659. The reversal of 67774172632 is 23627147776.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67774172632.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083 + ... + 368170.

It is an arithmetic number, because the mean of its divisors is an integer number (7942653540).

Almost surely, 2^67774172632 is an apocalyptic number.

It is an amenable number.

67774172632 is a deficient number, since it is larger than the sum of its proper divisors (59308284008).

67774172632 is a wasteful number, since it uses less digits than its factorization.

67774172632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392202 (or 392198 counting only the distinct ones).

The product of its digits is 4148928, while the sum is 52.

The spelling of 67774172632 in words is "sixty-seven billion, seven hundred seventy-four million, one hundred seventy-two thousand, six hundred thirty-two".