24728381725 has 12 divisors (see below), whose sum is σ = 32277046240. Its totient is φ = 18741510000.

The previous prime is 24728381663. The next prime is 24728381749. The reversal of 24728381725 is 52718382742.

It is not a de Polignac number, because 24728381725 - 2⁷ = 24728381597 is a prime.

It is a super-2 number, since 2×24728381725² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26029401 + ... + 26030350.

Almost surely, 2^24728381725 is an apocalyptic number.

24728381725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24728381725 is a deficient number, since it is larger than the sum of its proper divisors (7548664515).

24728381725 is a wasteful number, since it uses less digits than its factorization.

24728381725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52059780 (or 52059775 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 49.

The spelling of 24728381725 in words is "twenty-four billion, seven hundred twenty-eight million, three hundred eighty-one thousand, seven hundred twenty-five".