2109287524949 has 4 divisors (see below), whose sum is σ = 2301040936320. Its totient is φ = 1917534113580.

The previous prime is 2109287524931. The next prime is 2109287524991. The reversal of 2109287524949 is 9494257829012.

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 a cyclic number.

It is not a de Polignac number, because 2109287524949 - 2¹⁶ = 2109287459413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2109287524891 and 2109287524900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109287524909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95876705669 + ... + 95876705690.

It is an arithmetic number, because the mean of its divisors is an integer number (575260234080).

Almost surely, 2^{2109287524949} is an apocalyptic number.

It is an amenable number.

2109287524949 is a deficient number, since it is larger than the sum of its proper divisors (191753411371).

2109287524949 is a wasteful number, since it uses less digits than its factorization.

2109287524949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191753411370.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 2109287524949 in words is "two trillion, one hundred nine billion, two hundred eighty-seven million, five hundred twenty-four thousand, nine hundred forty-nine".