24645761149 has 2 divisors, whose sum is σ = 24645761150. Its totient is φ = 24645761148.

The previous prime is 24645761141. The next prime is 24645761171. The reversal of 24645761149 is 94116754642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19845765625 + 4799995524 = 140875^2 + 69282^2 .

It is a cyclic number.

It is not a de Polignac number, because 24645761149 - 2³ = 24645761141 is a prime.

It is a super-2 number, since 2×24645761149² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24645761141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12322880574 + 12322880575.

It is an arithmetic number, because the mean of its divisors is an integer number (12322880575).

Almost surely, 2^24645761149 is an apocalyptic number.

It is an amenable number.

24645761149 is a deficient number, since it is larger than the sum of its proper divisors (1).

24645761149 is an equidigital number, since it uses as much as digits as its factorization.

24645761149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The spelling of 24645761149 in words is "twenty-four billion, six hundred forty-five million, seven hundred sixty-one thousand, one hundred forty-nine".