67706454240 has 144 divisors (see below), whose sum is σ = 241093970208. Its totient is φ = 17270043648.

The previous prime is 67706454209. The next prime is 67706454247. The reversal of 67706454240 is 4245460776.

67706454240 is a `hidden beast` number, since 6 + 7 + 7 + 0 + 64 + 542 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67706454247) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 989019 + ... + 1055258.

It is an arithmetic number, because the mean of its divisors is an integer number (1674263682).

Almost surely, 2^67706454240 is an apocalyptic number.

67706454240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67706454240 is an abundant number, since it is smaller than the sum of its proper divisors (173387515968).

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

67706454240 is a wasteful number, since it uses less digits than its factorization.

67706454240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044321 (or 2044310 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The spelling of 67706454240 in words is "sixty-seven billion, seven hundred six million, four hundred fifty-four thousand, two hundred forty".