2124706919 has 4 divisors (see below), whose sum is σ = 2124950520. Its totient is φ = 2124463320.

The previous prime is 2124706897. The next prime is 2124706931. The reversal of 2124706919 is 9196074212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2124706919 is a prime.

It is a super-2 number, since 2×2124706919² = 9028758983292945122, 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 (2124706979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108212 + ... + 126329.

It is an arithmetic number, because the mean of its divisors is an integer number (531237630).

Almost surely, 2^2124706919 is an apocalyptic number.

2124706919 is a deficient number, since it is larger than the sum of its proper divisors (243601).

2124706919 is an equidigital number, since it uses as much as digits as its factorization.

2124706919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243600.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 2124706919 is about 46094.5432670723. The cubic root of 2124706919 is about 1285.5816872171.

The spelling of 2124706919 in words is "two billion, one hundred twenty-four million, seven hundred six thousand, nine hundred nineteen".