2127398919 has 8 divisors (see below), whose sum is σ = 2836796160. Its totient is φ = 1418133816.

The previous prime is 2127398909. The next prime is 2127398927. The reversal of 2127398919 is 9198937212.

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

It is not a de Polignac number, because 2127398919 - 2¹² = 2127394823 is a prime.

It is a super-2 number, since 2×2127398919² = 9051652321124737122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127398909) 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, 14172 + ... + 66750.

It is an arithmetic number, because the mean of its divisors is an integer number (354599520).

Almost surely, 2^2127398919 is an apocalyptic number.

2127398919 is a deficient number, since it is larger than the sum of its proper divisors (709397241).

2127398919 is a wasteful number, since it uses less digits than its factorization.

2127398919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66069.

The product of its digits is 489888, while the sum is 51.

The square root of 2127398919 is about 46123.7348769590. The cubic root of 2127398919 is about 1286.1244013354.

The spelling of 2127398919 in words is "two billion, one hundred twenty-seven million, three hundred ninety-eight thousand, nine hundred nineteen".