2123951752 has 16 divisors (see below), whose sum is σ = 4288748940. Its totient is φ = 980285376.

The previous prime is 2123951749. The next prime is 2123951779. The reversal of 2123951752 is 2571593212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2111034916 + 12916836 = 45946^2 + 3594^2 .

It is a super-2 number, since 2×2123951752² = 9022342089647739008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10211203 + ... + 10211410.

Almost surely, 2^2123951752 is an apocalyptic number.

It is an amenable number.

2123951752 is an abundant number, since it is smaller than the sum of its proper divisors (2164797188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123951752 is a wasteful number, since it uses less digits than its factorization.

2123951752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20422632 (or 20422628 counting only the distinct ones).

The product of its digits is 37800, while the sum is 37.

The square root of 2123951752 is about 46086.3510380243. The cubic root of 2123951752 is about 1285.4293612817.

The spelling of 2123951752 in words is "two billion, one hundred twenty-three million, nine hundred fifty-one thousand, seven hundred fifty-two".