67756489661904 has 40 divisors (see below), whose sum is σ = 175123866459360. Its totient is φ = 22574365177728.

The previous prime is 67756489661899. The next prime is 67756489661909. The reversal of 67756489661904 is 40916698465776.

67756489661904 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (67756489661899) and next prime (67756489661909).

It is a self number, because there is not a number n which added to its sum of digits gives 67756489661904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67756489661909) 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, 347757102 + ... + 347951885.

It is an arithmetic number, because the mean of its divisors is an integer number (4378096661484).

Almost surely, 2^{67756489661904} is an apocalyptic number.

It is an amenable number.

67756489661904 is an abundant number, since it is smaller than the sum of its proper divisors (107367376797456).

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

67756489661904 is a wasteful number, since it uses less digits than its factorization.

67756489661904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695711027 (or 695711021 counting only the distinct ones).

The product of its (nonzero) digits is 3292047360, while the sum is 78.

The spelling of 67756489661904 in words is "sixty-seven trillion, seven hundred fifty-six billion, four hundred eighty-nine million, six hundred sixty-one thousand, nine hundred four".