67142286121 has 4 divisors (see below), whose sum is σ = 67215347200. Its totient is φ = 67069225044.

The previous prime is 67142286109. The next prime is 67142286139. The reversal of 67142286121 is 12168224176.

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 67142286121 - 2¹⁹ = 67141761833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67142286151) 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, 36529161 + ... + 36530998.

It is an arithmetic number, because the mean of its divisors is an integer number (16803836800).

Almost surely, 2^67142286121 is an apocalyptic number.

It is an amenable number.

67142286121 is a deficient number, since it is larger than the sum of its proper divisors (73061079).

67142286121 is an equidigital number, since it uses as much as digits as its factorization.

67142286121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73061078.

The product of its digits is 64512, while the sum is 40.

The spelling of 67142286121 in words is "sixty-seven billion, one hundred forty-two million, two hundred eighty-six thousand, one hundred twenty-one".