864736680834 has 48 divisors (see below), whose sum is σ = 2123914665600. Its totient is φ = 252068990688.

The previous prime is 864736680823. The next prime is 864736680869. The reversal of 864736680834 is 438086637468.

864736680834 is a `hidden beast` number, since 8 + 6 + 473 + 6 + 6 + 80 + 83 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97244394 + ... + 97253285.

It is an arithmetic number, because the mean of its divisors is an integer number (44248222200).

Almost surely, 2^864736680834 is an apocalyptic number.

864736680834 is an abundant number, since it is smaller than the sum of its proper divisors (1259177984766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864736680834 is a wasteful number, since it uses less digits than its factorization.

864736680834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194497719 (or 194497716 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 63.

The spelling of 864736680834 in words is "eight hundred sixty-four billion, seven hundred thirty-six million, six hundred eighty thousand, eight hundred thirty-four".