2126351642 has 8 divisors (see below), whose sum is σ = 3191562432. Its totient is φ = 1062497500.

The previous prime is 2126351641. The next prime is 2126351651. The reversal of 2126351642 is 2461536212.

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

It is a junction number, because it is equal to n+sod(n) for n = 2126351599 and 2126351608.

It is not an unprimeable number, because it can be changed into a prime (2126351641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335234 + ... + 341517.

It is an arithmetic number, because the mean of its divisors is an integer number (398945304).

Almost surely, 2^2126351642 is an apocalyptic number.

2126351642 is a deficient number, since it is larger than the sum of its proper divisors (1065210790).

2126351642 is a wasteful number, since it uses less digits than its factorization.

2126351642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678324.

The product of its digits is 17280, while the sum is 32.

The square root of 2126351642 is about 46112.3805718161. The cubic root of 2126351642 is about 1285.9133220412.

Adding to 2126351642 its reverse (2461536212), we get a palindrome (4587887854).

The spelling of 2126351642 in words is "two billion, one hundred twenty-six million, three hundred fifty-one thousand, six hundred forty-two".