861134896 has 20 divisors (see below), whose sum is σ = 1673499784. Its totient is φ = 429264000.

The previous prime is 861134887. The next prime is 861134909. The reversal of 861134896 is 698431168.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76005 + ... + 86596.

Almost surely, 2^861134896 is an apocalyptic number.

It is an amenable number.

861134896 is a deficient number, since it is larger than the sum of its proper divisors (812364888).

861134896 is a wasteful number, since it uses less digits than its factorization.

861134896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162940 (or 162934 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 861134896 is about 29345.1000339069. The cubic root of 861134896 is about 951.3866715378.

The spelling of 861134896 in words is "eight hundred sixty-one million, one hundred thirty-four thousand, eight hundred ninety-six".