2129737572 has 36 divisors (see below), whose sum is σ = 5557167616. Its totient is φ = 687011760.

The previous prime is 2129737507. The next prime is 2129737613. The reversal of 2129737572 is 2757379212.

2129737572 is a `hidden beast` number, since 2 + 1 + 2 + 9 + 73 + 7 + 572 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 953068 + ... + 955299.

Almost surely, 2^2129737572 is an apocalyptic number.

It is an amenable number.

2129737572 is an abundant number, since it is smaller than the sum of its proper divisors (3427430044).

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

2129737572 is a wasteful number, since it uses less digits than its factorization.

2129737572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908408 (or 1908403 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 2129737572 is about 46149.0798608163. The cubic root of 2129737572 is about 1286.5955082783.

The spelling of 2129737572 in words is "two billion, one hundred twenty-nine million, seven hundred thirty-seven thousand, five hundred seventy-two".