2123864522 has 8 divisors (see below), whose sum is σ = 3430858116. Its totient is φ = 980245152.

The previous prime is 2123864497. The next prime is 2123864543. The reversal of 2123864522 is 2254683212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1685841481 + 438023041 = 41059^2 + 20929^2 .

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

It is an unprimeable number.

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, 40843523 + ... + 40843574.

Almost surely, 2^2123864522 is an apocalyptic number.

2123864522 is a deficient number, since it is larger than the sum of its proper divisors (1306993594).

2123864522 is a wasteful number, since it uses less digits than its factorization.

2123864522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81687112.

The product of its digits is 46080, while the sum is 35.

The square root of 2123864522 is about 46085.4046526663. The cubic root of 2123864522 is about 1285.4117636538.

The spelling of 2123864522 in words is "two billion, one hundred twenty-three million, eight hundred sixty-four thousand, five hundred twenty-two".