28172613876 has 192 divisors, whose sum is σ = 77027328000. Its totient is φ = 7930137600.

The previous prime is 28172613857. The next prime is 28172613919. The reversal of 28172613876 is 67831627182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23614336 + ... + 23615528.

It is an arithmetic number, because the mean of its divisors is an integer number (401184000).

Almost surely, 2^28172613876 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 28172613876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38513664000).

28172613876 is an abundant number, since it is smaller than the sum of its proper divisors (48854714124).

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

28172613876 is a wasteful number, since it uses less digits than its factorization.

28172613876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 1468 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The spelling of 28172613876 in words is "twenty-eight billion, one hundred seventy-two million, six hundred thirteen thousand, eight hundred seventy-six".