2490808851 has 24 divisors (see below), whose sum is σ = 3834155520. Its totient is φ = 1554541296.

The previous prime is 2490808849. The next prime is 2490808867. The reversal of 2490808851 is 1588080942.

It is a happy number.

2490808851 is a `hidden beast` number, since 2 + 490 + 80 + 8 + 85 + 1 = 666.

2490808851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2490808851 - 2¹ = 2490808849 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2490808797 and 2490808806.

It is not an unprimeable number, because it can be changed into a prime (2490808871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118281 + ... + 137738.

It is an arithmetic number, because the mean of its divisors is an integer number (159756480).

Almost surely, 2^2490808851 is an apocalyptic number.

2490808851 is a deficient number, since it is larger than the sum of its proper divisors (1343346669).

2490808851 is a wasteful number, since it uses less digits than its factorization.

2490808851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256095 (or 256092 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 2490808851 is about 49908.0038771338. The cubic root of 2490808851 is about 1355.5435247270.

The spelling of 2490808851 in words is "two billion, four hundred ninety million, eight hundred eight thousand, eight hundred fifty-one".