28677950168 has 32 divisors (see below), whose sum is σ = 62494329600. Its totient is φ = 12082234272.

The previous prime is 28677950167. The next prime is 28677950221. The reversal of 28677950168 is 86105977682.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28677950167) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4336580 + ... + 4343187.

It is an arithmetic number, because the mean of its divisors is an integer number (1952947800).

Almost surely, 2^28677950168 is an apocalyptic number.

28677950168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28677950168 is an abundant number, since it is smaller than the sum of its proper divisors (33816379432).

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

28677950168 is a wasteful number, since it uses less digits than its factorization.

28677950168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8679839 (or 8679835 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 59.

The spelling of 28677950168 in words is "twenty-eight billion, six hundred seventy-seven million, nine hundred fifty thousand, one hundred sixty-eight".