24748840405 has 4 divisors (see below), whose sum is σ = 29698608492. Its totient is φ = 19799072320.

The previous prime is 24748840387. The next prime is 24748840427. The reversal of 24748840405 is 50404884742.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50404884742 = 2 ⋅25202442371.

It can be written as a sum of positive squares in 2 ways, for example, as 10981572849 + 13767267556 = 104793^2 + 117334^2 .

It is not a de Polignac number, because 24748840405 - 2¹⁷ = 24748709333 is a prime.

It is a super-2 number, since 2×24748840405² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2474884036 + ... + 2474884045.

It is an arithmetic number, because the mean of its divisors is an integer number (7424652123).

Almost surely, 2^24748840405 is an apocalyptic number.

It is an amenable number.

24748840405 is a deficient number, since it is larger than the sum of its proper divisors (4949768087).

24748840405 is an equidigital number, since it uses as much as digits as its factorization.

24748840405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4949768086.

The product of its (nonzero) digits is 1146880, while the sum is 46.

The spelling of 24748840405 in words is "twenty-four billion, seven hundred forty-eight million, eight hundred forty thousand, four hundred five".