28760965380 has 768 divisors, whose sum is σ = 112594944000. Its totient is φ = 5949199872.

The previous prime is 28760965369. The next prime is 28760965391. The reversal of 28760965380 is 8356906782.

It is a happy number.

28760965380 is a `hidden beast` number, since 28 + 7 + 609 + 6 + 5 + 3 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (28760965369) and next prime (28760965391).

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

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 206913351 + ... + 206913489.

It is an arithmetic number, because the mean of its divisors is an integer number (146608000).

Almost surely, 2^28760965380 is an apocalyptic number.

28760965380 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 28760965380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56297472000).

28760965380 is an abundant number, since it is smaller than the sum of its proper divisors (83833978620).

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

28760965380 is a wasteful number, since it uses less digits than its factorization.

28760965380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 28760965380 in words is "twenty-eight billion, seven hundred sixty million, nine hundred sixty-five thousand, three hundred eighty".