2469868649 has 2 divisors, whose sum is σ = 2469868650. Its totient is φ = 2469868648.

The previous prime is 2469868627. The next prime is 2469868657. The reversal of 2469868649 is 9468689642.

2469868649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2431180249 + 38688400 = 49307^2 + 6220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2469868649 - 2⁸ = 2469868393 is a prime.

It is a super-2 number, since 2×2469868649² = 12200502286626170402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2469868591 and 2469868600.

It is not a weakly prime, because it can be changed into another prime (2469868669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1234934324 + 1234934325.

It is an arithmetic number, because the mean of its divisors is an integer number (1234934325).

Almost surely, 2^2469868649 is an apocalyptic number.

It is an amenable number.

2469868649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2469868649 is an equidigital number, since it uses as much as digits as its factorization.

2469868649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35831808, while the sum is 62.

The square root of 2469868649 is about 49697.7730788815. The cubic root of 2469868649 is about 1351.7341498525.

The spelling of 2469868649 in words is "two billion, four hundred sixty-nine million, eight hundred sixty-eight thousand, six hundred forty-nine".