28630192500 has 960 divisors, whose sum is σ = 117562368000. Its totient is φ = 5863104000.

The previous prime is 28630192477. The next prime is 28630192501. The reversal of 28630192500 is 529103682.

28630192500 is a `hidden beast` number, since 2 + 8 + 63 + 0 + 1 + 92 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28630192501) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 362407461 + ... + 362407539.

It is an arithmetic number, because the mean of its divisors is an integer number (122460800).

Almost surely, 2^28630192500 is an apocalyptic number.

28630192500 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 28630192500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58781184000).

28630192500 is an abundant number, since it is smaller than the sum of its proper divisors (88932175500).

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

28630192500 is a wasteful number, since it uses less digits than its factorization.

28630192500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 28630192500 in words is "twenty-eight billion, six hundred thirty million, one hundred ninety-two thousand, five hundred".