404840680678 has 16 divisors (see below), whose sum is σ = 703787422464. Its totient is φ = 171059442120.

The previous prime is 404840680649. The next prime is 404840680681. The reversal of 404840680678 is 876086048404.

It is a congruent number.

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, 203641200 + ... + 203643187.

It is an arithmetic number, because the mean of its divisors is an integer number (43986713904).

Almost surely, 2^404840680678 is an apocalyptic number.

404840680678 is a deficient number, since it is larger than the sum of its proper divisors (298946741786).

404840680678 is a wasteful number, since it uses less digits than its factorization.

404840680678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407284467.

The product of its (nonzero) digits is 8257536, while the sum is 55.

The spelling of 404840680678 in words is "four hundred four billion, eight hundred forty million, six hundred eighty thousand, six hundred seventy-eight".