24397648427 has 4 divisors (see below), whose sum is σ = 25184669376. Its totient is φ = 23610627480.

The previous prime is 24397648397. The next prime is 24397648487. The reversal of 24397648427 is 72484679342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 24397648427 - 2¹⁰ = 24397647403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24397648487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393510428 + ... + 393510489.

It is an arithmetic number, because the mean of its divisors is an integer number (6296167344).

Almost surely, 2^24397648427 is an apocalyptic number.

24397648427 is a deficient number, since it is larger than the sum of its proper divisors (787020949).

24397648427 is an equidigital number, since it uses as much as digits as its factorization.

24397648427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787020948.

The product of its digits is 16257024, while the sum is 56.

The spelling of 24397648427 in words is "twenty-four billion, three hundred ninety-seven million, six hundred forty-eight thousand, four hundred twenty-seven".