28635719424 has 72 divisors (see below), whose sum is σ = 82075323792. Its totient is φ = 8810987520.

The previous prime is 28635719423. The next prime is 28635719447. The reversal of 28635719424 is 42491753682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28635719423) 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, 1424097 + ... + 1444064.

Almost surely, 2^28635719424 is an apocalyptic number.

28635719424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28635719424 is an abundant number, since it is smaller than the sum of its proper divisors (53439604368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28635719424 is a wasteful number, since it uses less digits than its factorization.

28635719424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868193 (or 2868179 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 28635719424 in words is "twenty-eight billion, six hundred thirty-five million, seven hundred nineteen thousand, four hundred twenty-four".