6811528536139 has 16 divisors (see below), whose sum is σ = 6947472470400. Its totient is φ = 6676644744000.

The previous prime is 6811528536067. The next prime is 6811528536167. The reversal of 6811528536139 is 9316358251186.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6811528536139 - 2⁷ = 6811528536011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6811528936139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17175912 + ... + 17568010.

It is an arithmetic number, because the mean of its divisors is an integer number (434217029400).

Almost surely, 2^{6811528536139} is an apocalyptic number.

6811528536139 is a deficient number, since it is larger than the sum of its proper divisors (135943934261).

6811528536139 is a wasteful number, since it uses less digits than its factorization.

6811528536139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393450.

The product of its digits is 9331200, while the sum is 58.

The spelling of 6811528536139 in words is "six trillion, eight hundred eleven billion, five hundred twenty-eight million, five hundred thirty-six thousand, one hundred thirty-nine".