8514376991 has 4 divisors (see below), whose sum is σ = 8546751312. Its totient is φ = 8482002672.

The previous prime is 8514376987. The next prime is 8514376993. The reversal of 8514376991 is 1996734158.

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 8514376991 - 2² = 8514376987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8514376993) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16186766 + ... + 16187291.

It is an arithmetic number, because the mean of its divisors is an integer number (2136687828).

Almost surely, 2^8514376991 is an apocalyptic number.

8514376991 is a deficient number, since it is larger than the sum of its proper divisors (32374321).

8514376991 is a wasteful number, since it uses less digits than its factorization.

8514376991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32374320.

The product of its digits is 1632960, while the sum is 53.

The square root of 8514376991 is about 92273.3818118747. The cubic root of 8514376991 is about 2041.9775286968.

The spelling of 8514376991 in words is "eight billion, five hundred fourteen million, three hundred seventy-six thousand, nine hundred ninety-one".