67034489780 has 48 divisors (see below), whose sum is σ = 143809537536. Its totient is φ = 26235632640.

The previous prime is 67034489773. The next prime is 67034489831. The reversal of 67034489780 is 8798443076.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4059140 + ... + 4075620.

It is an arithmetic number, because the mean of its divisors is an integer number (2996032032).

Almost surely, 2^67034489780 is an apocalyptic number.

It is an amenable number.

67034489780 is an abundant number, since it is smaller than the sum of its proper divisors (76775047756).

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

67034489780 is a wasteful number, since it uses less digits than its factorization.

67034489780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20864 (or 20862 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 67034489780 in words is "sixty-seven billion, thirty-four million, four hundred eighty-nine thousand, seven hundred eighty".