67123491000 has 128 divisors (see below), whose sum is σ = 209551829760. Its totient is φ = 17888784000.

The previous prime is 67123490989. The next prime is 67123491047. The reversal of 67123491000 is 19432176.

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 31 ways as a sum of consecutive naturals, for example, 5787207 + ... + 5798793.

It is an arithmetic number, because the mean of its divisors is an integer number (1637123670).

Almost surely, 2^67123491000 is an apocalyptic number.

67123491000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67123491000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104775914880).

67123491000 is an abundant number, since it is smaller than the sum of its proper divisors (142428338760).

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

67123491000 is a wasteful number, since it uses less digits than its factorization.

67123491000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13542 (or 13528 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 67123491000 in words is "sixty-seven billion, one hundred twenty-three million, four hundred ninety-one thousand".