67001425998 has 72 divisors (see below), whose sum is σ = 153143501688. Its totient is φ = 19530673344.

The previous prime is 67001425963. The next prime is 67001426021. The reversal of 67001425998 is 89952410076.

It is a super-3 number, since 3×67001425998³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67001425998.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 274536 + ... + 457572.

It is an arithmetic number, because the mean of its divisors is an integer number (2126993079).

Almost surely, 2^67001425998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67001425998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76571750844).

67001425998 is an abundant number, since it is smaller than the sum of its proper divisors (86142075690).

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

67001425998 is a wasteful number, since it uses less digits than its factorization.

67001425998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183106 (or 183074 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 67001425998 in words is "sixty-seven billion, one million, four hundred twenty-five thousand, nine hundred ninety-eight".