2120518898 has 8 divisors (see below), whose sum is σ = 3181187820. Its totient is φ = 1060122960.

The previous prime is 2120518867. The next prime is 2120518901. The reversal of 2120518898 is 8988150212.

It can be written as a sum of positive squares in 2 ways, for example, as 1997464249 + 123054649 = 44693^2 + 11093^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47573 + ... + 80648.

Almost surely, 2^2120518898 is an apocalyptic number.

2120518898 is a deficient number, since it is larger than the sum of its proper divisors (1060668922).

2120518898 is a wasteful number, since it uses less digits than its factorization.

2120518898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136492.

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 2120518898 is about 46049.0922603258. The cubic root of 2120518898 is about 1284.7364593508.

The spelling of 2120518898 in words is "two billion, one hundred twenty million, five hundred eighteen thousand, eight hundred ninety-eight".