24897645413 has 8 divisors (see below), whose sum is σ = 25758668280. Its totient is φ = 24036788160.

The previous prime is 24897645397. The next prime is 24897645449. The reversal of 24897645413 is 31454679842.

It can be written as a sum of positive squares in 4 ways, for example, as 2536331044 + 22361314369 = 50362^2 + 149537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 24897645413 - 2⁴ = 24897645397 is a prime.

It is a super-2 number, since 2×24897645413² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24897645463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317243 + ... + 387863.

It is an arithmetic number, because the mean of its divisors is an integer number (3219833535).

Almost surely, 2^24897645413 is an apocalyptic number.

It is an amenable number.

24897645413 is a deficient number, since it is larger than the sum of its proper divisors (861022867).

24897645413 is a wasteful number, since it uses less digits than its factorization.

24897645413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82807.

The product of its digits is 5806080, while the sum is 53.

The spelling of 24897645413 in words is "twenty-four billion, eight hundred ninety-seven million, six hundred forty-five thousand, four hundred thirteen".