2151806882 has 8 divisors (see below), whose sum is σ = 3229939152. Its totient is φ = 1075160500.

The previous prime is 2151806879. The next prime is 2151806939. The reversal of 2151806882 is 2886081512.

It is a happy number.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367844 + ... + 373647.

It is an arithmetic number, because the mean of its divisors is an integer number (403742394).

Almost surely, 2^2151806882 is an apocalyptic number.

2151806882 is a deficient number, since it is larger than the sum of its proper divisors (1078132270).

2151806882 is a wasteful number, since it uses less digits than its factorization.

2151806882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742944.

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 2151806882 is about 46387.5724952276. The cubic root of 2151806882 is about 1291.0243415317.

The spelling of 2151806882 in words is "two billion, one hundred fifty-one million, eight hundred six thousand, eight hundred eighty-two".