28628951760 has 60 divisors (see below), whose sum is σ = 96145565412. Its totient is φ = 7634386944.

The previous prime is 28628951731. The next prime is 28628951777. The reversal of 28628951760 is 6715982682.

28628951760 is a `hidden beast` number, since 2 + 8 + 62 + 8 + 9 + 517 + 60 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21651356736 + 6977595024 = 147144^2 + 83532^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a junction number, because it is equal to n+sod(n) for n = 28628951697 and 28628951706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19880497 + ... + 19881936.

Almost surely, 2^28628951760 is an apocalyptic number.

28628951760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28628951760 is an abundant number, since it is smaller than the sum of its proper divisors (67516613652).

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

28628951760 is a wasteful number, since it uses less digits than its factorization.

28628951760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39762452 (or 39762443 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 28628951760 in words is "twenty-eight billion, six hundred twenty-eight million, nine hundred fifty-one thousand, seven hundred sixty".