2151789284 has 12 divisors (see below), whose sum is σ = 3768992304. Its totient is φ = 1074934344.

The previous prime is 2151789271. The next prime is 2151789293. The reversal of 2151789284 is 4829871512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235022 + ... + 244005.

It is an arithmetic number, because the mean of its divisors is an integer number (314082692).

Almost surely, 2^2151789284 is an apocalyptic number.

It is an amenable number.

2151789284 is a deficient number, since it is larger than the sum of its proper divisors (1617203020).

2151789284 is a wasteful number, since it uses less digits than its factorization.

2151789284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480154 (or 480152 counting only the distinct ones).

The product of its digits is 322560, while the sum is 47.

The square root of 2151789284 is about 46387.3828104152. The cubic root of 2151789284 is about 1291.0208220851.

The spelling of 2151789284 in words is "two billion, one hundred fifty-one million, seven hundred eighty-nine thousand, two hundred eighty-four".