439681052976666 has 16 divisors (see below), whose sum is σ = 880118221277664. Its totient is φ = 146434331771504.

The previous prime is 439681052976653. The next prime is 439681052976677. The reversal of 439681052976666 is 666679250186934.

It is a junction number, because it is equal to n+sod(n) for n = 439681052976591 and 439681052976600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31504797621 + ... + 31504811576.

It is an arithmetic number, because the mean of its divisors is an integer number (55007388829854).

It is a 1-persistent number, because it is pandigital, but 2⋅439681052976666 = 879362105953332 is not.

Almost surely, 2^{439681052976666} is an apocalyptic number.

439681052976666 is an abundant number, since it is smaller than the sum of its proper divisors (440437168300998).

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

439681052976666 is a wasteful number, since it uses less digits than its factorization.

439681052976666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63009610365.

The product of its (nonzero) digits is 4232632320, while the sum is 78.

The spelling of 439681052976666 in words is "four hundred thirty-nine trillion, six hundred eighty-one billion, fifty-two million, nine hundred seventy-six thousand, six hundred sixty-six".