861100881170 has 16 divisors (see below), whose sum is σ = 1641156973848. Its totient is φ = 324179155200.

The previous prime is 861100881163. The next prime is 861100881191. The reversal of 861100881170 is 71188001168.

861100881170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 698249085769 + 162851795401 = 835613^2 + 403549^2 .

It is a super-4 number, since 4×861100881170⁴ (a number of 49 digits) contains 4444 as substring.

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, 2532649481 + ... + 2532649820.

Almost surely, 2^861100881170 is an apocalyptic number.

861100881170 is a deficient number, since it is larger than the sum of its proper divisors (780056092678).

861100881170 is a wasteful number, since it uses less digits than its factorization.

861100881170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065299325.

The product of its (nonzero) digits is 21504, while the sum is 41.

The spelling of 861100881170 in words is "eight hundred sixty-one billion, one hundred million, eight hundred eighty-one thousand, one hundred seventy".