2029281851 has 4 divisors (see below), whose sum is σ = 2030568600. Its totient is φ = 2027995104.

The previous prime is 2029281827. The next prime is 2029281883. The reversal of 2029281851 is 1581829202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2029281851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2029281811) by changing a digit.

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, 641006 + ... + 644163.

It is an arithmetic number, because the mean of its divisors is an integer number (507642150).

Almost surely, 2^2029281851 is an apocalyptic number.

2029281851 is a deficient number, since it is larger than the sum of its proper divisors (1286749).

2029281851 is a wasteful number, since it uses less digits than its factorization.

2029281851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286748.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 2029281851 is about 45047.5509989167. The cubic root of 2029281851 is about 1266.0400869703.

The spelling of 2029281851 in words is "two billion, twenty-nine million, two hundred eighty-one thousand, eight hundred fifty-one".