28711010432848 has 80 divisors (see below), whose sum is σ = 58525359494400. Its totient is φ = 13624578920960.

The previous prime is 28711010432837. The next prime is 28711010432947. The reversal of 28711010432848 is 84823401011782.

It is a happy number.

It is a super-2 number, since 2×28711010432848² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497967990 + ... + 498025642.

It is an arithmetic number, because the mean of its divisors is an integer number (731566993680).

Almost surely, 2^{28711010432848} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28711010432848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29262679747200).

28711010432848 is an abundant number, since it is smaller than the sum of its proper divisors (29814349061552).

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

28711010432848 is a wasteful number, since it uses less digits than its factorization.

28711010432848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75940 (or 75934 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 49.

The spelling of 28711010432848 in words is "twenty-eight trillion, seven hundred eleven billion, ten million, four hundred thirty-two thousand, eight hundred forty-eight".