24540145499 has 2 divisors, whose sum is σ = 24540145500. Its totient is φ = 24540145498.

The previous prime is 24540145459. The next prime is 24540145547. The reversal of 24540145499 is 99454104542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 24540145499 - 2¹² = 24540141403 is a prime.

It is a super-2 number, since 2×24540145499² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (24540145459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12270072749 + 12270072750.

It is an arithmetic number, because the mean of its divisors is an integer number (12270072750).

Almost surely, 2^24540145499 is an apocalyptic number.

24540145499 is a deficient number, since it is larger than the sum of its proper divisors (1).

24540145499 is an equidigital number, since it uses as much as digits as its factorization.

24540145499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 24540145499 in words is "twenty-four billion, five hundred forty million, one hundred forty-five thousand, four hundred ninety-nine".