6840628704 has 144 divisors (see below), whose sum is σ = 23942292192. Its totient is φ = 1804114944.

The previous prime is 6840628699. The next prime is 6840628741. The reversal of 6840628704 is 4078260486.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 6840628704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104299 + ... + 156714.

It is an arithmetic number, because the mean of its divisors is an integer number (166265918).

Almost surely, 2^6840628704 is an apocalyptic number.

It is an amenable number.

6840628704 is an abundant number, since it is smaller than the sum of its proper divisors (17101663488).

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

6840628704 is a wasteful number, since it uses less digits than its factorization.

6840628704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261049 (or 261038 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 6840628704 is about 82708.0933403739. The cubic root of 6840628704 is about 1898.3021493557.

The spelling of 6840628704 in words is "six billion, eight hundred forty million, six hundred twenty-eight thousand, seven hundred four".