28397883360 has 1152 divisors, whose sum is σ = 122863910400. Its totient is φ = 5434490880.

The previous prime is 28397883337. The next prime is 28397883383. The reversal of 28397883360 is 6338879382.

It is an interprime number because it is at equal distance from previous prime (28397883337) and next prime (28397883383).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 28397883360.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 260530986 + ... + 260531094.

It is an arithmetic number, because the mean of its divisors is an integer number (106652700).

Almost surely, 2^28397883360 is an apocalyptic number.

28397883360 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 28397883360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61431955200).

28397883360 is an abundant number, since it is smaller than the sum of its proper divisors (94466027040).

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

28397883360 is a wasteful number, since it uses less digits than its factorization.

28397883360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 28397883360 in words is "twenty-eight billion, three hundred ninety-seven million, eight hundred eighty-three thousand, three hundred sixty".