24396377989 has 2 divisors, whose sum is σ = 24396377990. Its totient is φ = 24396377988.

The previous prime is 24396377987. The next prime is 24396378073. The reversal of 24396377989 is 98977369342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20261244964 + 4135133025 = 142342^2 + 64305^2 .

It is a cyclic number.

It is not a de Polignac number, because 24396377989 - 2¹ = 24396377987 is a prime.

Together with 24396377987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24396377987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12198188994 + 12198188995.

It is an arithmetic number, because the mean of its divisors is an integer number (12198188995).

Almost surely, 2^24396377989 is an apocalyptic number.

It is an amenable number.

24396377989 is a deficient number, since it is larger than the sum of its proper divisors (1).

24396377989 is an equidigital number, since it uses as much as digits as its factorization.

24396377989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123451776, while the sum is 67.

The spelling of 24396377989 in words is "twenty-four billion, three hundred ninety-six million, three hundred seventy-seven thousand, nine hundred eighty-nine".