67400708672 has 112 divisors (see below), whose sum is σ = 151133860800. Its totient is φ = 29541980160.

The previous prime is 67400708671. The next prime is 67400708677. The reversal of 67400708672 is 27680700476.

It is not an unprimeable number, because it can be changed into a prime (67400708671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20679779 + ... + 20683037.

Almost surely, 2^67400708672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67400708672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75566930400).

67400708672 is an abundant number, since it is smaller than the sum of its proper divisors (83733152128).

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

67400708672 is a wasteful number, since it uses less digits than its factorization.

67400708672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 67400708672 in words is "sixty-seven billion, four hundred million, seven hundred eight thousand, six hundred seventy-two".