67373530064 has 20 divisors (see below), whose sum is σ = 131212573956. Its totient is φ = 33512220672.

The previous prime is 67373530043. The next prime is 67373530069. The reversal of 67373530064 is 46003537376.

It can be written as a sum of positive squares in 2 ways, for example, as 36439755664 + 30933774400 = 190892^2 + 175880^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67373529997 and 67373530024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67373530069) by changing a digit.

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, 10905839 + ... + 10912014.

Almost surely, 2^67373530064 is an apocalyptic number.

It is an amenable number.

67373530064 is a deficient number, since it is larger than the sum of its proper divisors (63839043892).

67373530064 is a wasteful number, since it uses less digits than its factorization.

67373530064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21818054 (or 21818048 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 44.

The spelling of 67373530064 in words is "sixty-seven billion, three hundred seventy-three million, five hundred thirty thousand, sixty-four".