67734274961 has 4 divisors (see below), whose sum is σ = 67854585072. Its totient is φ = 67613964852.

The previous prime is 67734274957. The next prime is 67734274963. The reversal of 67734274961 is 16947243776.

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 67734274961 - 2² = 67734274957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67734274897 and 67734274906.

It is not an unprimeable number, because it can be changed into a prime (67734274963) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60154211 + ... + 60155336.

It is an arithmetic number, because the mean of its divisors is an integer number (16963646268).

Almost surely, 2^67734274961 is an apocalyptic number.

It is an amenable number.

67734274961 is a deficient number, since it is larger than the sum of its proper divisors (120310111).

67734274961 is a wasteful number, since it uses less digits than its factorization.

67734274961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120310110.

The product of its digits is 10668672, while the sum is 56.

The spelling of 67734274961 in words is "sixty-seven billion, seven hundred thirty-four million, two hundred seventy-four thousand, nine hundred sixty-one".