2126271551 has 8 divisors (see below), whose sum is σ = 2251121520. Its totient is φ = 2002715712.

The previous prime is 2126271473. The next prime is 2126271671. The reversal of 2126271551 is 1551726212.

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 2126271551 - 2¹⁴ = 2126255167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126201551) 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, 320150 + ... + 326723.

It is an arithmetic number, because the mean of its divisors is an integer number (281390190).

Almost surely, 2^2126271551 is an apocalyptic number.

2126271551 is a deficient number, since it is larger than the sum of its proper divisors (124849969).

2126271551 is a wasteful number, since it uses less digits than its factorization.

2126271551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647065.

The product of its digits is 8400, while the sum is 32.

The square root of 2126271551 is about 46111.5121309202. The cubic root of 2126271551 is about 1285.8971768005.

Adding to 2126271551 its reverse (1551726212), we get a palindrome (3677997763).

The spelling of 2126271551 in words is "two billion, one hundred twenty-six million, two hundred seventy-one thousand, five hundred fifty-one".