28516506671334 has 192 divisors, whose sum is σ = 67043081730240. Its totient is φ = 8051579289600.

The previous prime is 28516506671329. The next prime is 28516506671399. The reversal of 28516506671334 is 43317660561582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1228671522 + ... + 1228694730.

It is an arithmetic number, because the mean of its divisors is an integer number (349182717345).

Almost surely, 2^{28516506671334} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28516506671334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33521540865120).

28516506671334 is an abundant number, since it is smaller than the sum of its proper divisors (38526575058906).

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

28516506671334 is a wasteful number, since it uses less digits than its factorization.

28516506671334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24247 (or 24236 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 57.

The spelling of 28516506671334 in words is "twenty-eight trillion, five hundred sixteen billion, five hundred six million, six hundred seventy-one thousand, three hundred thirty-four".