2120495776 has 72 divisors (see below), whose sum is σ = 5023880820. Its totient is φ = 877427712.

The previous prime is 2120495771. The next prime is 2120495777. The reversal of 2120495776 is 6775940212.

It can be written as a sum of positive squares in 2 ways, for example, as 2090684176 + 29811600 = 45724^2 + 5460^2 .

It is not an unprimeable number, because it can be changed into a prime (2120495771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22156 + ... + 68788.

Almost surely, 2^2120495776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120495776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2511940410).

2120495776 is an abundant number, since it is smaller than the sum of its proper divisors (2903385044).

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

2120495776 is a wasteful number, since it uses less digits than its factorization.

2120495776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46686 (or 46671 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 2120495776 is about 46048.8412014895. The cubic root of 2120495776 is about 1284.7317897729.

The spelling of 2120495776 in words is "two billion, one hundred twenty million, four hundred ninety-five thousand, seven hundred seventy-six".