861179361 has 32 divisors (see below), whose sum is σ = 1370265600. Its totient is φ = 480633552.

The previous prime is 861179359. The next prime is 861179369. The reversal of 861179361 is 163971168.

861179361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 861179361 - 2¹ = 861179359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (861179369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34516 + ... + 53978.

It is an arithmetic number, because the mean of its divisors is an integer number (42820800).

Almost surely, 2^861179361 is an apocalyptic number.

It is an amenable number.

861179361 is a deficient number, since it is larger than the sum of its proper divisors (509086239).

861179361 is a wasteful number, since it uses less digits than its factorization.

861179361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19530 (or 19516 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 861179361 is about 29345.8576463527. The cubic root of 861179361 is about 951.4030463165.

The spelling of 861179361 in words is "eight hundred sixty-one million, one hundred seventy-nine thousand, three hundred sixty-one".