24145661497 has 2 divisors, whose sum is σ = 24145661498. Its totient is φ = 24145661496.

The previous prime is 24145661483. The next prime is 24145661557. The reversal of 24145661497 is 79416654142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18621604521 + 5524056976 = 136461^2 + 74324^2 .

It is a cyclic number.

It is not a de Polignac number, because 24145661497 - 2⁷ = 24145661369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24145661497.

It is not a weakly prime, because it can be changed into another prime (24145661437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12072830748 + 12072830749.

It is an arithmetic number, because the mean of its divisors is an integer number (12072830749).

Almost surely, 2^24145661497 is an apocalyptic number.

It is an amenable number.

24145661497 is a deficient number, since it is larger than the sum of its proper divisors (1).

24145661497 is an equidigital number, since it uses as much as digits as its factorization.

24145661497 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 24145661497 in words is "twenty-four billion, one hundred forty-five million, six hundred sixty-one thousand, four hundred ninety-seven".