42968620466 has 4 divisors (see below), whose sum is σ = 64452930702. Its totient is φ = 21484310232.

The previous prime is 42968620459. The next prime is 42968620481. The reversal of 42968620466 is 66402686924.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26889112441 + 16079508025 = 163979^2 + 126805^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10742155115 + ... + 10742155118.

Almost surely, 2^42968620466 is an apocalyptic number.

42968620466 is a deficient number, since it is larger than the sum of its proper divisors (21484310236).

42968620466 is a wasteful number, since it uses less digits than its factorization.

42968620466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21484310235.

The product of its (nonzero) digits is 5971968, while the sum is 53.

The spelling of 42968620466 in words is "forty-two billion, nine hundred sixty-eight million, six hundred twenty thousand, four hundred sixty-six".