24428285555638 has 4 divisors (see below), whose sum is σ = 36642428333460. Its totient is φ = 12214142777818.

The previous prime is 24428285555561. The next prime is 24428285555659. The reversal of 24428285555638 is 83655558282442.

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

It is a super-2 number, since 2×24428285555638² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6107071388908 + ... + 6107071388911.

It is an arithmetic number, because the mean of its divisors is an integer number (9160607083365).

Almost surely, 2^{24428285555638} is an apocalyptic number.

24428285555638 is a deficient number, since it is larger than the sum of its proper divisors (12214142777822).

24428285555638 is a wasteful number, since it uses less digits than its factorization.

24428285555638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12214142777821.

The product of its digits is 737280000, while the sum is 67.

The spelling of 24428285555638 in words is "twenty-four trillion, four hundred twenty-eight billion, two hundred eighty-five million, five hundred fifty-five thousand, six hundred thirty-eight".