2126904874 has 4 divisors (see below), whose sum is σ = 3190357314. Its totient is φ = 1063452436.

The previous prime is 2126904841. The next prime is 2126904877. The reversal of 2126904874 is 4784096212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1872725625 + 254179249 = 43275^2 + 15943^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2126904874.

It is not an unprimeable number, because it can be changed into a prime (2126904877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531726217 + ... + 531726220.

Almost surely, 2^2126904874 is an apocalyptic number.

2126904874 is a deficient number, since it is larger than the sum of its proper divisors (1063452440).

2126904874 is a wasteful number, since it uses less digits than its factorization.

2126904874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063452439.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 2126904874 is about 46118.3789177373. The cubic root of 2126904874 is about 1286.0248349092.

The spelling of 2126904874 in words is "two billion, one hundred twenty-six million, nine hundred four thousand, eight hundred seventy-four".