28550263742 has 64 divisors (see below), whose sum is σ = 57605313024. Its totient is φ = 10248992640.

The previous prime is 28550263741. The next prime is 28550263747. The reversal of 28550263742 is 24736205582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28550263693 and 28550263702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550263741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1102313 + ... + 1127915.

It is an arithmetic number, because the mean of its divisors is an integer number (900083016).

Almost surely, 2^28550263742 is an apocalyptic number.

28550263742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28550263742 is an abundant number, since it is smaller than the sum of its proper divisors (29055049282).

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

28550263742 is a wasteful number, since it uses less digits than its factorization.

28550263742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26193.

The product of its (nonzero) digits is 806400, while the sum is 44.

It can be divided in two parts, 28550 and 263742, that added together give a palindrome (292292).

The spelling of 28550263742 in words is "twenty-eight billion, five hundred fifty million, two hundred sixty-three thousand, seven hundred forty-two".