6734680728 has 16 divisors (see below), whose sum is σ = 16836701880. Its totient is φ = 2244893568.

The previous prime is 6734680727. The next prime is 6734680801. The reversal of 6734680728 is 8270864376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6734680721) 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, 140305825 + ... + 140305872.

Almost surely, 2^6734680728 is an apocalyptic number.

It is an amenable number.

6734680728 is an abundant number, since it is smaller than the sum of its proper divisors (10102021152).

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

6734680728 is a wasteful number, since it uses less digits than its factorization.

6734680728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280611706 (or 280611702 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The square root of 6734680728 is about 82065.1005482842. The cubic root of 6734680728 is about 1888.4507827607.

The spelling of 6734680728 in words is "six billion, seven hundred thirty-four million, six hundred eighty thousand, seven hundred twenty-eight".