19680087845 has 16 divisors (see below), whose sum is σ = 25878569472. Its totient is φ = 14248599360.

The previous prime is 19680087841. The next prime is 19680087853. The reversal of 19680087845 is 54878008691.

It is not a de Polignac number, because 19680087845 - 2² = 19680087841 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19680087841) 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, 790022 + ... + 814551.

It is an arithmetic number, because the mean of its divisors is an integer number (1617410592).

Almost surely, 2^19680087845 is an apocalyptic number.

It is an amenable number.

19680087845 is a deficient number, since it is larger than the sum of its proper divisors (6198481627).

19680087845 is a wasteful number, since it uses less digits than its factorization.

19680087845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604812.

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 19680087845 in words is "nineteen billion, six hundred eighty million, eighty-seven thousand, eight hundred forty-five".