67004865840 has 160 divisors (see below), whose sum is σ = 232722890496. Its totient is φ = 15804564480.

The previous prime is 67004865833. The next prime is 67004865859. The reversal of 67004865840 is 4856840076.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 67004865840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245302 + ... + 440661.

Almost surely, 2^67004865840 is an apocalyptic number.

67004865840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67004865840 is an abundant number, since it is smaller than the sum of its proper divisors (165718024656).

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

67004865840 is a wasteful number, since it uses less digits than its factorization.

67004865840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686027 (or 686021 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 67004865840 in words is "sixty-seven billion, four million, eight hundred sixty-five thousand, eight hundred forty".