684401233604 has 12 divisors (see below), whose sum is σ = 1306584173328. Its totient is φ = 311091469800.

The previous prime is 684401233591. The next prime is 684401233609. The reversal of 684401233604 is 406332104486.

It is not an unprimeable number, because it can be changed into a prime (684401233609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7777286702 + ... + 7777286789.

It is an arithmetic number, because the mean of its divisors is an integer number (108882014444).

Almost surely, 2^684401233604 is an apocalyptic number.

It is an amenable number.

684401233604 is a deficient number, since it is larger than the sum of its proper divisors (622182939724).

684401233604 is a wasteful number, since it uses less digits than its factorization.

684401233604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15554573506 (or 15554573504 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 684401233604 in words is "six hundred eighty-four billion, four hundred one million, two hundred thirty-three thousand, six hundred four".