28888338762 has 48 divisors (see below), whose sum is σ = 62770029192. Its totient is φ = 9602012160.

The previous prime is 28888338749. The next prime is 28888338763. The reversal of 28888338762 is 26783388882.

It can be written as a sum of positive squares in 4 ways, for example, as 28676374281 + 211964481 = 169341^2 + 14559^2 .

It is a super-2 number, since 2×28888338762² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28888338762.

It is not an unprimeable number, because it can be changed into a prime (28888338763) 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, 13366962 + ... + 13369122.

Almost surely, 2^28888338762 is an apocalyptic number.

28888338762 is an abundant number, since it is smaller than the sum of its proper divisors (33881690430).

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

28888338762 is a wasteful number, since it uses less digits than its factorization.

28888338762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943 (or 3940 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 63.

It can be divided in two parts, 288883 and 38762, that added together give a triangular number (327645 = T₈₀₉).

The spelling of 28888338762 in words is "twenty-eight billion, eight hundred eighty-eight million, three hundred thirty-eight thousand, seven hundred sixty-two".