8429277464891 has 4 divisors (see below), whose sum is σ = 8446169805000. Its totient is φ = 8412385124784.

The previous prime is 8429277464869. The next prime is 8429277464899. The reversal of 8429277464891 is 1984647729248.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8429277464891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8429277464899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8446169306 + ... + 8446170303.

It is an arithmetic number, because the mean of its divisors is an integer number (2111542451250).

Almost surely, 2^{8429277464891} is an apocalyptic number.

8429277464891 is a deficient number, since it is larger than the sum of its proper divisors (16892340109).

8429277464891 is a wasteful number, since it uses less digits than its factorization.

8429277464891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892340108.

The product of its digits is 390168576, while the sum is 71.

The spelling of 8429277464891 in words is "eight trillion, four hundred twenty-nine billion, two hundred seventy-seven million, four hundred sixty-four thousand, eight hundred ninety-one".