28275671760 has 80 divisors (see below), whose sum is σ = 100176671616. Its totient is φ = 6463010304.

The previous prime is 28275671729. The next prime is 28275671789. The reversal of 28275671760 is 6717657282.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×28275671760² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8413699 + ... + 8417058.

Almost surely, 2^28275671760 is an apocalyptic number.

28275671760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28275671760 is an abundant number, since it is smaller than the sum of its proper divisors (71900999856).

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

28275671760 is a wasteful number, since it uses less digits than its factorization.

28275671760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16830780 (or 16830774 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 28275671760 in words is "twenty-eight billion, two hundred seventy-five million, six hundred seventy-one thousand, seven hundred sixty".