2349618989 has 2 divisors, whose sum is σ = 2349618990. Its totient is φ = 2349618988.

The previous prime is 2349618979. The next prime is 2349619001. The reversal of 2349618989 is 9898169432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2288856964 + 60762025 = 47842^2 + 7795^2 .

It is a cyclic number.

It is not a de Polignac number, because 2349618989 - 2²⁴ = 2332841773 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2349618979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1174809494 + 1174809495.

It is an arithmetic number, because the mean of its divisors is an integer number (1174809495).

Almost surely, 2^2349618989 is an apocalyptic number.

It is an amenable number.

2349618989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2349618989 is an equidigital number, since it uses as much as digits as its factorization.

2349618989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6718464, while the sum is 59.

The square root of 2349618989 is about 48472.8685864577. The cubic root of 2349618989 is about 1329.4310395457.

The spelling of 2349618989 in words is "two billion, three hundred forty-nine million, six hundred eighteen thousand, nine hundred eighty-nine".