28950871608 has 40 divisors (see below), whose sum is σ = 81089248680. Its totient is φ = 9650290320.

The previous prime is 28950871603. The next prime is 28950871657. The reversal of 28950871608 is 80617805982.

28950871608 is a `hidden beast` number, since 2 + 8 + 9 + 508 + 71 + 60 + 8 = 666.

It is a super-3 number, since 3×28950871608³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28950871603) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 22337988 + ... + 22339283.

It is an arithmetic number, because the mean of its divisors is an integer number (2027231217).

Almost surely, 2^28950871608 is an apocalyptic number.

It is an amenable number.

28950871608 is an abundant number, since it is smaller than the sum of its proper divisors (52138377072).

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

28950871608 is a wasteful number, since it uses less digits than its factorization.

28950871608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44677289 (or 44677276 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 28950871608 in words is "twenty-eight billion, nine hundred fifty million, eight hundred seventy-one thousand, six hundred eight".