861406264076 has 12 divisors (see below), whose sum is σ = 1510688933208. Its totient is φ = 429780854592.

The previous prime is 861406264027. The next prime is 861406264109. The reversal of 861406264076 is 670462604168.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230567261 + ... + 230570996.

It is an arithmetic number, because the mean of its divisors is an integer number (125890744434).

Almost surely, 2^861406264076 is an apocalyptic number.

It is an amenable number.

861406264076 is a deficient number, since it is larger than the sum of its proper divisors (649282669132).

861406264076 is a wasteful number, since it uses less digits than its factorization.

861406264076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461138728 (or 461138726 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 861406264076 in words is "eight hundred sixty-one billion, four hundred six million, two hundred sixty-four thousand, seventy-six".