684654380034 has 32 divisors (see below), whose sum is σ = 1394586987840. Its totient is φ = 224016586752.

The previous prime is 684654380023. The next prime is 684654380041. The reversal of 684654380034 is 430083456486.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1198647 + ... + 1675130.

It is an arithmetic number, because the mean of its divisors is an integer number (43580843370).

Almost surely, 2^684654380034 is an apocalyptic number.

684654380034 is an abundant number, since it is smaller than the sum of its proper divisors (709932607806).

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

684654380034 is a wasteful number, since it uses less digits than its factorization.

684654380034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874514.

The product of its (nonzero) digits is 6635520, while the sum is 51.

The spelling of 684654380034 in words is "six hundred eighty-four billion, six hundred fifty-four million, three hundred eighty thousand, thirty-four".