67894500145 has 8 divisors (see below), whose sum is σ = 81476472960. Its totient is φ = 54313551600.

The previous prime is 67894500139. The next prime is 67894500199. The reversal of 67894500145 is 54100549876.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67894500145 - 2⁷ = 67894500017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101785 + ... + 382294.

It is an arithmetic number, because the mean of its divisors is an integer number (10184559120).

Almost surely, 2^67894500145 is an apocalyptic number.

It is an amenable number.

67894500145 is a deficient number, since it is larger than the sum of its proper divisors (13581972815).

67894500145 is a wasteful number, since it uses less digits than its factorization.

67894500145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512135.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 67894500145 in words is "sixty-seven billion, eight hundred ninety-four million, five hundred thousand, one hundred forty-five".