67141944889 has 4 divisors (see below), whose sum is σ = 67164336000. Its totient is φ = 67119553780.

The previous prime is 67141944869. The next prime is 67141944899. The reversal of 67141944889 is 98844914176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67141944889 - 2⁷ = 67141944761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67141944869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11191057 + ... + 11197054.

It is an arithmetic number, because the mean of its divisors is an integer number (16791084000).

Almost surely, 2^67141944889 is an apocalyptic number.

It is an amenable number.

67141944889 is a deficient number, since it is larger than the sum of its proper divisors (22391111).

67141944889 is a wasteful number, since it uses less digits than its factorization.

67141944889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22391110.

The product of its digits is 13934592, while the sum is 61.

The spelling of 67141944889 in words is "sixty-seven billion, one hundred forty-one million, nine hundred forty-four thousand, eight hundred eighty-nine".