2109426919 has 8 divisors (see below), whose sum is σ = 2135877120. Its totient is φ = 2083091736.

The previous prime is 2109426901. The next prime is 2109426923. The reversal of 2109426919 is 9196249012.

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 2109426919 - 2¹⁵ = 2109394151 is a prime.

It is a super-2 number, since 2×2109426919² = 8899363853203665122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109426119) 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, 8454 + ... + 65500.

It is an arithmetic number, because the mean of its divisors is an integer number (266984640).

Almost surely, 2^2109426919 is an apocalyptic number.

2109426919 is a deficient number, since it is larger than the sum of its proper divisors (26450201).

2109426919 is a wasteful number, since it uses less digits than its factorization.

2109426919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57509.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 2109426919 is about 45928.4978961864. The cubic root of 2109426919 is about 1282.4924820239.

The spelling of 2109426919 in words is "two billion, one hundred nine million, four hundred twenty-six thousand, nine hundred nineteen".