7805368664442 has 24 divisors (see below), whose sum is σ = 16911751117716. Its totient is φ = 2601771245376.

The previous prime is 7805368664363. The next prime is 7805368664491. The reversal of 7805368664442 is 2444668635087.

7805368664442 is a `hidden beast` number, since 7 + 8 + 0 + 53 + 6 + 86 + 64 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7709168818521 + 96199845921 = 2776539^2 + 310161^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7805368664442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1238428 + ... + 4140584.

Almost surely, 2^{7805368664442} is an apocalyptic number.

7805368664442 is an abundant number, since it is smaller than the sum of its proper divisors (9106382453274).

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

7805368664442 is a wasteful number, since it uses less digits than its factorization.

7805368664442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051582 (or 3051579 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 63.

The spelling of 7805368664442 in words is "seven trillion, eight hundred five billion, three hundred sixty-eight million, six hundred sixty-four thousand, four hundred forty-two".