6697728015 has 32 divisors (see below), whose sum is σ = 11701552896. Its totient is φ = 3244335360.

The previous prime is 6697728001. The next prime is 6697728053. The reversal of 6697728015 is 5108277966.

It is not a de Polignac number, because 6697728015 - 2⁴ = 6697727999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162504 + ... + 199506.

It is an arithmetic number, because the mean of its divisors is an integer number (365673528).

Almost surely, 2^6697728015 is an apocalyptic number.

6697728015 is a deficient number, since it is larger than the sum of its proper divisors (5003824881).

6697728015 is a wasteful number, since it uses less digits than its factorization.

6697728015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38119.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The square root of 6697728015 is about 81839.6481847277. The cubic root of 6697728015 is about 1884.9905146725.

The spelling of 6697728015 in words is "six billion, six hundred ninety-seven million, seven hundred twenty-eight thousand, fifteen".