28553691952 has 10 divisors (see below), whose sum is σ = 55322778188. Its totient is φ = 14276845968.

The previous prime is 28553691937. The next prime is 28553691953. The reversal of 28553691952 is 25919635582.

It is a junction number, because it is equal to n+sod(n) for n = 28553691893 and 28553691902.

It is not an unprimeable number, because it can be changed into a prime (28553691953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 892302858 + ... + 892302889.

Almost surely, 2^28553691952 is an apocalyptic number.

It is an amenable number.

28553691952 is a deficient number, since it is larger than the sum of its proper divisors (26769086236).

28553691952 is a wasteful number, since it uses less digits than its factorization.

28553691952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784605755 (or 1784605749 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 55.

The spelling of 28553691952 in words is "twenty-eight billion, five hundred fifty-three million, six hundred ninety-one thousand, nine hundred fifty-two".