28637324760 has 128 divisors (see below), whose sum is σ = 95006338560. Its totient is φ = 6847257600.

The previous prime is 28637324711. The next prime is 28637324777. The reversal of 28637324760 is 6742373682.

It is a super-3 number, since 3×28637324760³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52236 + ... + 244955.

It is an arithmetic number, because the mean of its divisors is an integer number (742237020).

Almost surely, 2^28637324760 is an apocalyptic number.

28637324760 is a gapful number since it is divisible by the number (20) 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 28637324760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47503169280).

28637324760 is an abundant number, since it is smaller than the sum of its proper divisors (66369013800).

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

28637324760 is a wasteful number, since it uses less digits than its factorization.

28637324760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297289 (or 297285 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 28637324760 in words is "twenty-eight billion, six hundred thirty-seven million, three hundred twenty-four thousand, seven hundred sixty".