24454157989 has 2 divisors, whose sum is σ = 24454157990. Its totient is φ = 24454157988.

The previous prime is 24454157969. The next prime is 24454158019. The reversal of 24454157989 is 98975145442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15087208900 + 9366949089 = 122830^2 + 96783^2 .

It is a cyclic number.

It is not a de Polignac number, because 24454157989 - 2¹⁷ = 24454026917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24454157929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12227078994 + 12227078995.

It is an arithmetic number, because the mean of its divisors is an integer number (12227078995).

Almost surely, 2^24454157989 is an apocalyptic number.

It is an amenable number.

24454157989 is a deficient number, since it is larger than the sum of its proper divisors (1).

24454157989 is an equidigital number, since it uses as much as digits as its factorization.

24454157989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 58.

The spelling of 24454157989 in words is "twenty-four billion, four hundred fifty-four million, one hundred fifty-seven thousand, nine hundred eighty-nine".