2109494677 has 8 divisors (see below), whose sum is σ = 2119947264. Its totient is φ = 2099068608.

The previous prime is 2109494669. The next prime is 2109494683. The reversal of 2109494677 is 7764949012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2109494677 - 2³ = 2109494669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2109494677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109494617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163453 + ... + 175885.

It is an arithmetic number, because the mean of its divisors is an integer number (264993408).

Almost surely, 2^2109494677 is an apocalyptic number.

It is an amenable number.

2109494677 is a deficient number, since it is larger than the sum of its proper divisors (10452587).

2109494677 is a wasteful number, since it uses less digits than its factorization.

2109494677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13259.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 2109494677 is about 45929.2355368560. The cubic root of 2109494677 is about 1282.5062137463.

The spelling of 2109494677 in words is "two billion, one hundred nine million, four hundred ninety-four thousand, six hundred seventy-seven".