67445354144 has 48 divisors (see below), whose sum is σ = 155281186368. Its totient is φ = 28232934912.

The previous prime is 67445354131. The next prime is 67445354147. The reversal of 67445354144 is 44145354476.

67445354144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (67445354147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3491477 + ... + 3510740.

It is an arithmetic number, because the mean of its divisors is an integer number (3235024716).

Almost surely, 2^67445354144 is an apocalyptic number.

It is an amenable number.

67445354144 is an abundant number, since it is smaller than the sum of its proper divisors (87835832224).

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

67445354144 is a wasteful number, since it uses less digits than its factorization.

67445354144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002277 (or 7002269 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 47.

The spelling of 67445354144 in words is "sixty-seven billion, four hundred forty-five million, three hundred fifty-four thousand, one hundred forty-four".