28357750080 has 784 divisors, whose sum is σ = 113456337984. Its totient is φ = 6688604160.

The previous prime is 28357750051. The next prime is 28357750093. The reversal of 28357750080 is 8005775382.

28357750080 is a `hidden beast` number, since 28 + 3 + 577 + 50 + 0 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 110341312 + ... + 110341568.

Almost surely, 2^28357750080 is an apocalyptic number.

28357750080 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 28357750080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56728168992).

28357750080 is an abundant number, since it is smaller than the sum of its proper divisors (85098587904).

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

28357750080 is a wasteful number, since it uses less digits than its factorization.

28357750080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 28357750080 in words is "twenty-eight billion, three hundred fifty-seven million, seven hundred fifty thousand, eighty".