667412679434 has 8 divisors (see below), whose sum is σ = 1001124814080. Its totient is φ = 333704408076.

The previous prime is 667412679419. The next prime is 667412679457. The reversal of 667412679434 is 434976214766.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486314 + ... + 1253525.

It is an arithmetic number, because the mean of its divisors is an integer number (125140601760).

Almost surely, 2^667412679434 is an apocalyptic number.

667412679434 is a deficient number, since it is larger than the sum of its proper divisors (333712134646).

667412679434 is a wasteful number, since it uses less digits than its factorization.

667412679434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931644.

The product of its digits is 36578304, while the sum is 59.

The spelling of 667412679434 in words is "six hundred sixty-seven billion, four hundred twelve million, six hundred seventy-nine thousand, four hundred thirty-four".