684279891083 has 16 divisors (see below), whose sum is σ = 733399077600. Its totient is φ = 636180481536.

The previous prime is 684279891037. The next prime is 684279891137. The reversal of 684279891083 is 380198972486.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 684279891083 - 2¹⁴ = 684279874699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (684279891013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95885 + ... + 1173777.

It is an arithmetic number, because the mean of its divisors is an integer number (45837442350).

Almost surely, 2^684279891083 is an apocalyptic number.

684279891083 is a deficient number, since it is larger than the sum of its proper divisors (49119186517).

684279891083 is a wasteful number, since it uses less digits than its factorization.

684279891083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078366.

The product of its (nonzero) digits is 41803776, while the sum is 65.

The spelling of 684279891083 in words is "six hundred eighty-four billion, two hundred seventy-nine million, eight hundred ninety-one thousand, eighty-three".