2101173684 has 24 divisors (see below), whose sum is σ = 5191135488. Its totient is φ = 659191680.

The previous prime is 2101173647. The next prime is 2101173689. The reversal of 2101173684 is 4863711012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101173689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5149732 + ... + 5150139.

It is an arithmetic number, because the mean of its divisors is an integer number (216297312).

Almost surely, 2^2101173684 is an apocalyptic number.

It is an amenable number.

2101173684 is an abundant number, since it is smaller than the sum of its proper divisors (3089961804).

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

2101173684 is a wasteful number, since it uses less digits than its factorization.

2101173684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10299895 (or 10299893 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 2101173684 is about 45838.5611030713. The cubic root of 2101173684 is about 1280.8176912346.

Adding to 2101173684 its reverse (4863711012), we get a palindrome (6964884696).

The spelling of 2101173684 in words is "two billion, one hundred one million, one hundred seventy-three thousand, six hundred eighty-four".