7905505500691 has 8 divisors (see below), whose sum is σ = 8035276053168. Its totient is φ = 7775740500000.

The previous prime is 7905505500677. The next prime is 7905505500703. The reversal of 7905505500691 is 1960055055097.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7905505500691 - 2¹³ = 7905505492499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7905505503691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533396 + ... + 4261726.

It is an arithmetic number, because the mean of its divisors is an integer number (1004409506646).

Almost surely, 2^{7905505500691} is an apocalyptic number.

7905505500691 is a deficient number, since it is larger than the sum of its proper divisors (129770552477).

7905505500691 is a wasteful number, since it uses less digits than its factorization.

7905505500691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775893.

The product of its (nonzero) digits is 2126250, while the sum is 52.

It can be divided in two parts, 79055055006 and 91, that added together give a palindrome (79055055097).

The spelling of 7905505500691 in words is "seven trillion, nine hundred five billion, five hundred five million, five hundred thousand, six hundred ninety-one".