28553691950 has 48 divisors (see below), whose sum is σ = 60717078144. Its totient is φ = 9786597600.

The previous prime is 28553691937. The next prime is 28553691953. The reversal of 28553691950 is 5919635582.

28553691950 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28553691892 and 28553691901.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 1201685 + ... + 1225215.

It is an arithmetic number, because the mean of its divisors is an integer number (1264939128).

Almost surely, 2^28553691950 is an apocalyptic number.

28553691950 is an abundant number, since it is smaller than the sum of its proper divisors (32163386194).

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

28553691950 is a wasteful number, since it uses less digits than its factorization.

28553691950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27017 (or 27012 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 53.

The spelling of 28553691950 in words is "twenty-eight billion, five hundred fifty-three million, six hundred ninety-one thousand, nine hundred fifty".