404626646623 has 8 divisors (see below), whose sum is σ = 418962988080. Its totient is φ = 390315885120.

The previous prime is 404626646609. The next prime is 404626646759. The reversal of 404626646623 is 326646626404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404626646623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404626646023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6362790 + ... + 6426067.

It is an arithmetic number, because the mean of its divisors is an integer number (52370373510).

Almost surely, 2^404626646623 is an apocalyptic number.

404626646623 is a deficient number, since it is larger than the sum of its proper divisors (14336341457).

404626646623 is a wasteful number, since it uses less digits than its factorization.

404626646623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12789977.

The product of its (nonzero) digits is 5971968, while the sum is 49.

The spelling of 404626646623 in words is "four hundred four billion, six hundred twenty-six million, six hundred forty-six thousand, six hundred twenty-three".