8791357434787 has 4 divisors (see below), whose sum is σ = 8805985317976. Its totient is φ = 8776729551600.

The previous prime is 8791357434767. The next prime is 8791357434823. The reversal of 8791357434787 is 7874347531978.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8791357434787 - 2¹⁹ = 8791356910499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8791357434767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7313940693 + ... + 7313941894.

It is an arithmetic number, because the mean of its divisors is an integer number (2201496329494).

Almost surely, 2^{8791357434787} is an apocalyptic number.

8791357434787 is a deficient number, since it is larger than the sum of its proper divisors (14627883189).

8791357434787 is a wasteful number, since it uses less digits than its factorization.

8791357434787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14627883188.

The product of its digits is 995742720, while the sum is 73.

The spelling of 8791357434787 in words is "eight trillion, seven hundred ninety-one billion, three hundred fifty-seven million, four hundred thirty-four thousand, seven hundred eighty-seven".