67354952864 has 24 divisors (see below), whose sum is σ = 133023395988. Its totient is φ = 33571233280.

The previous prime is 67354952839. The next prime is 67354952891. The reversal of 67354952864 is 46825945376.

It can be written as a sum of positive squares in 2 ways, for example, as 56349264400 + 11005688464 = 237380^2 + 104908^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3309797 + ... + 3330084.

Almost surely, 2^67354952864 is an apocalyptic number.

It is an amenable number.

67354952864 is a deficient number, since it is larger than the sum of its proper divisors (65668443124).

67354952864 is a wasteful number, since it uses less digits than its factorization.

67354952864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640208 (or 6640200 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 59.

The spelling of 67354952864 in words is "sixty-seven billion, three hundred fifty-four million, nine hundred fifty-two thousand, eight hundred sixty-four".