8791311415 has 4 divisors (see below), whose sum is σ = 10549573704. Its totient is φ = 7033049128.

The previous prime is 8791311349. The next prime is 8791311427. The reversal of 8791311415 is 5141131978.

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 8791311415 - 2⁹ = 8791310903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879131137 + ... + 879131146.

It is an arithmetic number, because the mean of its divisors is an integer number (2637393426).

Almost surely, 2^8791311415 is an apocalyptic number.

8791311415 is a deficient number, since it is larger than the sum of its proper divisors (1758262289).

8791311415 is a wasteful number, since it uses less digits than its factorization.

8791311415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758262288.

The product of its digits is 30240, while the sum is 40.

The square root of 8791311415 is about 93761.9934461720. The cubic root of 8791311415 is about 2063.8805334143.

The spelling of 8791311415 in words is "eight billion, seven hundred ninety-one million, three hundred eleven thousand, four hundred fifteen".