2126729519 has 8 divisors (see below), whose sum is σ = 2139131280. Its totient is φ = 2114364096.

The previous prime is 2126729509. The next prime is 2126729543. The reversal of 2126729519 is 9159276212.

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 2126729519 - 2⁸ = 2126729263 is a prime.

It is a super-2 number, since 2×2126729519² = 9045956893971942722, which contains 22 as substring.

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 2126729519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126729509) 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, 113024 + ... + 130490.

It is an arithmetic number, because the mean of its divisors is an integer number (267391410).

Almost surely, 2^2126729519 is an apocalyptic number.

2126729519 is a deficient number, since it is larger than the sum of its proper divisors (12401761).

2126729519 is a wasteful number, since it uses less digits than its factorization.

2126729519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18169.

The product of its digits is 136080, while the sum is 44.

The square root of 2126729519 is about 46116.4777384397. The cubic root of 2126729519 is about 1285.9894913629.

The spelling of 2126729519 in words is "two billion, one hundred twenty-six million, seven hundred twenty-nine thousand, five hundred nineteen".