5049989649 has 6 divisors (see below), whose sum is σ = 7294429506. Its totient is φ = 3366659760.

The previous prime is 5049989629. The next prime is 5049989663. The reversal of 5049989649 is 9469899405.

5049989649 is a `hidden beast` number, since 5 + 0 + 499 + 89 + 64 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4421585025 + 628404624 = 66495^2 + 25068^2 .

It is not a de Polignac number, because 5049989649 - 2¹² = 5049985553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5049989629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280554972 + ... + 280554989.

It is an arithmetic number, because the mean of its divisors is an integer number (1215738251).

Almost surely, 2^5049989649 is an apocalyptic number.

It is an amenable number.

5049989649 is a deficient number, since it is larger than the sum of its proper divisors (2244439857).

5049989649 is a wasteful number, since it uses less digits than its factorization.

5049989649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561109967 (or 561109964 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The square root of 5049989649 is about 71063.2791883403. The cubic root of 5049989649 is about 1715.6557994252.

The spelling of 5049989649 in words is "five billion, forty-nine million, nine hundred eighty-nine thousand, six hundred forty-nine".