861930363383705 has 64 divisors (see below), whose sum is σ = 1292019635773440. Its totient is φ = 536273154144000.

The previous prime is 861930363383701. The next prime is 861930363383743. The reversal of 861930363383705 is 507383363039168.

It is not a de Polignac number, because 861930363383705 - 2² = 861930363383701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (861930363383701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2240327855 + ... + 2240712555.

It is an arithmetic number, because the mean of its divisors is an integer number (20187806808960).

Almost surely, 2^{861930363383705} is an apocalyptic number.

It is an amenable number.

861930363383705 is a deficient number, since it is larger than the sum of its proper divisors (430089272389735).

861930363383705 is a wasteful number, since it uses less digits than its factorization.

861930363383705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395910.

The product of its (nonzero) digits is 176359680, while the sum is 65.

The spelling of 861930363383705 in words is "eight hundred sixty-one trillion, nine hundred thirty billion, three hundred sixty-three million, three hundred eighty-three thousand, seven hundred five".