20678701682 has 16 divisors (see below), whose sum is σ = 31544560320. Its totient is φ = 10165293072.

The previous prime is 20678701679. The next prime is 20678701727. The reversal of 20678701682 is 28610787602.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 332453 + ... + 389720.

It is an arithmetic number, because the mean of its divisors is an integer number (1971535020).

Almost surely, 2^20678701682 is an apocalyptic number.

20678701682 is a deficient number, since it is larger than the sum of its proper divisors (10865858638).

20678701682 is a wasteful number, since it uses less digits than its factorization.

20678701682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722417.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 20678701682 in words is "twenty billion, six hundred seventy-eight million, seven hundred one thousand, six hundred eighty-two".