478795796661 has 48 divisors (see below), whose sum is σ = 806044452864. Its totient is φ = 250562906496.

The previous prime is 478795796579. The next prime is 478795796683. The reversal of 478795796661 is 166697597874.

It is not a de Polignac number, because 478795796661 - 2¹⁰ = 478795795637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478795796261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 743710 + ... + 1229103.

It is an arithmetic number, because the mean of its divisors is an integer number (16792592768).

Almost surely, 2^478795796661 is an apocalyptic number.

It is an amenable number.

478795796661 is a deficient number, since it is larger than the sum of its proper divisors (327248656203).

478795796661 is a wasteful number, since it uses less digits than its factorization.

478795796661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972970 (or 1972963 counting only the distinct ones).

The product of its digits is 960180480, while the sum is 75.

The spelling of 478795796661 in words is "four hundred seventy-eight billion, seven hundred ninety-five million, seven hundred ninety-six thousand, six hundred sixty-one".