6642037536758 has 16 divisors (see below), whose sum is σ = 10731591780000. Its totient is φ = 3064942492416.

The previous prime is 6642037536737. The next prime is 6642037536781. The reversal of 6642037536758 is 8576357302466.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6642037536758.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25421435 + ... + 25681382.

It is an arithmetic number, because the mean of its divisors is an integer number (670724486250).

Almost surely, 2^{6642037536758} is an apocalyptic number.

6642037536758 is a deficient number, since it is larger than the sum of its proper divisors (4089554243242).

6642037536758 is a wasteful number, since it uses less digits than its factorization.

6642037536758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51107831.

The product of its (nonzero) digits is 152409600, while the sum is 62.

The spelling of 6642037536758 in words is "six trillion, six hundred forty-two billion, thirty-seven million, five hundred thirty-six thousand, seven hundred fifty-eight".