5481649969 has 2 divisors, whose sum is σ = 5481649970. Its totient is φ = 5481649968.

The previous prime is 5481649913. The next prime is 5481650029. The reversal of 5481649969 is 9699461845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5232641569 + 249008400 = 72337^2 + 15780^2 .

It is a cyclic number.

It is not a de Polignac number, because 5481649969 - 2⁷ = 5481649841 is a prime.

It is a super-2 number, since 2×5481649969² = 60096972765275401922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5481649909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2740824984 + 2740824985.

It is an arithmetic number, because the mean of its divisors is an integer number (2740824985).

Almost surely, 2^5481649969 is an apocalyptic number.

It is an amenable number.

5481649969 is a deficient number, since it is larger than the sum of its proper divisors (1).

5481649969 is an equidigital number, since it uses as much as digits as its factorization.

5481649969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16796160, while the sum is 61.

The square root of 5481649969 is about 74038.1656242238. The cubic root of 5481649969 is about 1763.2088894573.

The spelling of 5481649969 in words is "five billion, four hundred eighty-one million, six hundred forty-nine thousand, nine hundred sixty-nine".