6642594735 has 64 divisors (see below), whose sum is σ = 12392911872. Its totient is φ = 2975486976.

The previous prime is 6642594713. The next prime is 6642594737. The reversal of 6642594735 is 5374952466.

It is not a de Polignac number, because 6642594735 - 2¹³ = 6642586543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642594737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1383499 + ... + 1388291.

It is an arithmetic number, because the mean of its divisors is an integer number (193639248).

Almost surely, 2^6642594735 is an apocalyptic number.

6642594735 is a deficient number, since it is larger than the sum of its proper divisors (5750317137).

6642594735 is a wasteful number, since it uses less digits than its factorization.

6642594735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072.

The product of its digits is 5443200, while the sum is 51.

The square root of 6642594735 is about 81502.1149112095. The cubic root of 6642594735 is about 1879.8040703275.

The spelling of 6642594735 in words is "six billion, six hundred forty-two million, five hundred ninety-four thousand, seven hundred thirty-five".