861439941596 has 24 divisors (see below), whose sum is σ = 1624072950864. Its totient is φ = 397443179520.

The previous prime is 861439941553. The next prime is 861439941601. The reversal of 861439941596 is 695149934168.

861439941596 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865590 + ... + 3151901.

It is an arithmetic number, because the mean of its divisors is an integer number (67669706286).

Almost surely, 2^861439941596 is an apocalyptic number.

It is an amenable number.

861439941596 is a deficient number, since it is larger than the sum of its proper divisors (762633009268).

861439941596 is a wasteful number, since it uses less digits than its factorization.

861439941596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6020261 (or 6020259 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 65.

The spelling of 861439941596 in words is "eight hundred sixty-one billion, four hundred thirty-nine million, nine hundred forty-one thousand, five hundred ninety-six".