663828479997 has 16 divisors (see below), whose sum is σ = 893895475200. Its totient is φ = 438158802672.

The previous prime is 663828479983. The next prime is 663828480013. The reversal of 663828479997 is 799974828366.

It is not a de Polignac number, because 663828479997 - 2⁴ = 663828479981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663828479947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176004 + ... + 1646402.

It is an arithmetic number, because the mean of its divisors is an integer number (55868467200).

Almost surely, 2^663828479997 is an apocalyptic number.

It is an amenable number.

663828479997 is a deficient number, since it is larger than the sum of its proper divisors (230066995203).

663828479997 is a wasteful number, since it uses less digits than its factorization.

663828479997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475072.

The product of its digits is 1975228416, while the sum is 78.

The spelling of 663828479997 in words is "six hundred sixty-three billion, eight hundred twenty-eight million, four hundred seventy-nine thousand, nine hundred ninety-seven".