28872938952 has 384 divisors, whose sum is σ = 94197841920. Its totient is φ = 7874496000.

The previous prime is 28872938951. The next prime is 28872938953. The reversal of 28872938952 is 25983927882.

It is an interprime number because it is at equal distance from previous prime (28872938951) and next prime (28872938953).

It is a self number, because there is not a number n which added to its sum of digits gives 28872938952.

It is not an unprimeable number, because it can be changed into a prime (28872938951) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 92838877 + ... + 92839187.

It is an arithmetic number, because the mean of its divisors is an integer number (245306880).

Almost surely, 2^28872938952 is an apocalyptic number.

28872938952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28872938952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47098920960).

28872938952 is an abundant number, since it is smaller than the sum of its proper divisors (65324902968).

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

28872938952 is a wasteful number, since it uses less digits than its factorization.

28872938952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 538 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 28872938952 in words is "twenty-eight billion, eight hundred seventy-two million, nine hundred thirty-eight thousand, nine hundred fifty-two".