67400668008 has 24 divisors (see below), whose sum is σ = 182543476050. Its totient is φ = 22466889312.

The previous prime is 67400667931. The next prime is 67400668019. The reversal of 67400668008 is 80086600476.

It is a happy number.

67400668008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 67131773604 + 268894404 = 259098^2 + 16398^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 468060123 + ... + 468060266.

Almost surely, 2^67400668008 is an apocalyptic number.

It is an amenable number.

67400668008 is an abundant number, since it is smaller than the sum of its proper divisors (115142808042).

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

67400668008 is a wasteful number, since it uses less digits than its factorization.

67400668008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936120401 (or 936120394 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 67400668008 in words is "sixty-seven billion, four hundred million, six hundred sixty-eight thousand, eight".