63723328446 has 16 divisors (see below), whose sum is σ = 127451810304. Its totient is φ = 21240250584.

The previous prime is 63723328441. The next prime is 63723328451. The reversal of 63723328446 is 64482332736.

It is an interprime number because it is at equal distance from previous prime (63723328441) and next prime (63723328451).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63723328395 and 63723328404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63723328441) 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, 43470 + ... + 359633.

It is an arithmetic number, because the mean of its divisors is an integer number (7965738144).

Almost surely, 2^63723328446 is an apocalyptic number.

63723328446 is an abundant number, since it is smaller than the sum of its proper divisors (63728481858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63723328446 is a wasteful number, since it uses less digits than its factorization.

63723328446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429455.

The product of its digits is 3483648, while the sum is 48.

The spelling of 63723328446 in words is "sixty-three billion, seven hundred twenty-three million, three hundred twenty-eight thousand, four hundred forty-six".