864280379876 has 12 divisors (see below), whose sum is σ = 1512502438272. Its totient is φ = 432136826088.

The previous prime is 864280379857. The next prime is 864280379923. The reversal of 864280379876 is 678973082468.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210320 + ... + 1331463.

It is an arithmetic number, because the mean of its divisors is an integer number (126041869856).

Almost surely, 2^864280379876 is an apocalyptic number.

It is an amenable number.

864280379876 is a deficient number, since it is larger than the sum of its proper divisors (648222058396).

864280379876 is a wasteful number, since it uses less digits than its factorization.

864280379876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681930 (or 1681928 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 68.

The spelling of 864280379876 in words is "eight hundred sixty-four billion, two hundred eighty million, three hundred seventy-nine thousand, eight hundred seventy-six".