2086404864688 has 20 divisors (see below), whose sum is σ = 4255167816760. Its totient is φ = 988297041024.

The previous prime is 2086404864673. The next prime is 2086404864727. The reversal of 2086404864688 is 8864684046802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3431586645 + ... + 3431587252.

It is an arithmetic number, because the mean of its divisors is an integer number (212758390838).

Almost surely, 2^{2086404864688} is an apocalyptic number.

It is an amenable number.

2086404864688 is an abundant number, since it is smaller than the sum of its proper divisors (2168762952072).

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

2086404864688 is a wasteful number, since it uses less digits than its factorization.

2086404864688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863173924 (or 6863173918 counting only the distinct ones).

The product of its (nonzero) digits is 113246208, while the sum is 64.

The spelling of 2086404864688 in words is "two trillion, eighty-six billion, four hundred four million, eight hundred sixty-four thousand, six hundred eighty-eight".