8500101861 has 4 divisors (see below), whose sum is σ = 11333469152. Its totient is φ = 5666734572.

The previous prime is 8500101851. The next prime is 8500101889. The reversal of 8500101861 is 1681010058.

It is a happy number.

8500101861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8500101861 - 2⁹ = 8500101349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500101851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416683641 + ... + 1416683646.

It is an arithmetic number, because the mean of its divisors is an integer number (2833367288).

Almost surely, 2^8500101861 is an apocalyptic number.

It is an amenable number.

8500101861 is a deficient number, since it is larger than the sum of its proper divisors (2833367291).

8500101861 is a wasteful number, since it uses less digits than its factorization.

8500101861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833367290.

The product of its (nonzero) digits is 1920, while the sum is 30.

The square root of 8500101861 is about 92195.9969901080. The cubic root of 8500101861 is about 2040.8357031118.

The spelling of 8500101861 in words is "eight billion, five hundred million, one hundred one thousand, eight hundred sixty-one".