67625275121 has 4 divisors (see below), whose sum is σ = 67625906544. Its totient is φ = 67624643700.

The previous prime is 67625275099. The next prime is 67625275129. The reversal of 67625275121 is 12157252676.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 67625275121 - 2¹⁸ = 67625012977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67625275129) 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, 110675 + ... + 384056.

It is an arithmetic number, because the mean of its divisors is an integer number (16906476636).

Almost surely, 2^67625275121 is an apocalyptic number.

It is an amenable number.

67625275121 is a deficient number, since it is larger than the sum of its proper divisors (631423).

67625275121 is a wasteful number, since it uses less digits than its factorization.

67625275121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631422.

The product of its digits is 352800, while the sum is 44.

The spelling of 67625275121 in words is "sixty-seven billion, six hundred twenty-five million, two hundred seventy-five thousand, one hundred twenty-one".