28618763316 has 48 divisors (see below), whose sum is σ = 78451439808. Its totient is φ = 8005248000.

The previous prime is 28618763273. The next prime is 28618763323. The reversal of 28618763316 is 61336781682.

It is a super-2 number, since 2×28618763316² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8337085 + ... + 8340516.

It is an arithmetic number, because the mean of its divisors is an integer number (1634404996).

Almost surely, 2^28618763316 is an apocalyptic number.

28618763316 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28618763316 is an abundant number, since it is smaller than the sum of its proper divisors (49832676492).

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

28618763316 is a wasteful number, since it uses less digits than its factorization.

28618763316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16677632 (or 16677630 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The spelling of 28618763316 in words is "twenty-eight billion, six hundred eighteen million, seven hundred sixty-three thousand, three hundred sixteen".