28886196780 has 288 divisors, whose sum is σ = 105476575680. Its totient is φ = 6543452160.

The previous prime is 28886196767. The next prime is 28886196803. The reversal of 28886196780 is 8769168882.

28886196780 is a `hidden beast` number, since 2 + 8 + 8 + 8 + 619 + 6 + 7 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 2985150 + ... + 2994810.

It is an arithmetic number, because the mean of its divisors is an integer number (366238110).

Almost surely, 2^28886196780 is an apocalyptic number.

28886196780 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 28886196780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52738287840).

28886196780 is an abundant number, since it is smaller than the sum of its proper divisors (76590378900).

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

28886196780 is a wasteful number, since it uses less digits than its factorization.

28886196780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9806 (or 9791 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

It can be divided in two parts, 288861 and 96780, that added together give a square (385641 = 621²).

The spelling of 28886196780 in words is "twenty-eight billion, eight hundred eighty-six million, one hundred ninety-six thousand, seven hundred eighty".