2101677539 has 4 divisors (see below), whose sum is σ = 2263345056. Its totient is φ = 1940010024.

The previous prime is 2101677511. The next prime is 2101677551. The reversal of 2101677539 is 9357761012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2101677539 - 2⁸ = 2101677283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101677496 and 2101677505.

It is not an unprimeable number, because it can be changed into a prime (2101677559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80833739 + ... + 80833764.

It is an arithmetic number, because the mean of its divisors is an integer number (565836264).

Almost surely, 2^2101677539 is an apocalyptic number.

2101677539 is a deficient number, since it is larger than the sum of its proper divisors (161667517).

2101677539 is a wasteful number, since it uses less digits than its factorization.

2101677539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161667516.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 2101677539 is about 45844.0567467584. The cubic root of 2101677539 is about 1280.9200617693.

The spelling of 2101677539 in words is "two billion, one hundred one million, six hundred seventy-seven thousand, five hundred thirty-nine".