28610258880 has 224 divisors, whose sum is σ = 106621088256. Its totient is φ = 6362689536.

The previous prime is 28610258837. The next prime is 28610258891. The reversal of 28610258880 is 8885201682.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191107 + ... + 306173.

Almost surely, 2^28610258880 is an apocalyptic number.

28610258880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28610258880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53310544128).

28610258880 is an abundant number, since it is smaller than the sum of its proper divisors (78010829376).

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

28610258880 is a wasteful number, since it uses less digits than its factorization.

28610258880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115131 (or 115121 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 48.

The spelling of 28610258880 in words is "twenty-eight billion, six hundred ten million, two hundred fifty-eight thousand, eight hundred eighty".