2126899397 has 8 divisors (see below), whose sum is σ = 2439394752. Its totient is φ = 1816567200.

The previous prime is 2126899351. The next prime is 2126899403. The reversal of 2126899397 is 7939986212.

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

It is not a de Polignac number, because 2126899397 - 2¹² = 2126895301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126899297) 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, 538679 + ... + 542612.

It is an arithmetic number, because the mean of its divisors is an integer number (304924344).

Almost surely, 2^2126899397 is an apocalyptic number.

It is an amenable number.

2126899397 is a deficient number, since it is larger than the sum of its proper divisors (312495355).

2126899397 is a wasteful number, since it uses less digits than its factorization.

2126899397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081579.

The product of its digits is 2939328, while the sum is 56.

The square root of 2126899397 is about 46118.3195379016. The cubic root of 2126899397 is about 1286.0237310259.

The spelling of 2126899397 in words is "two billion, one hundred twenty-six million, eight hundred ninety-nine thousand, three hundred ninety-seven".