28762863750 has 80 divisors (see below), whose sum is σ = 79871370480. Its totient is φ = 7670088000.

The previous prime is 28762863733. The next prime is 28762863751. The reversal of 28762863750 is 5736826782.

28762863750 is a `hidden beast` number, since 2 + 8 + 7 + 628 + 6 + 3 + 7 + 5 + 0 = 666.

It is a super-2 number, since 2×28762863750² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28762863751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 392367 + ... + 459866.

It is an arithmetic number, because the mean of its divisors is an integer number (998392131).

Almost surely, 2^28762863750 is an apocalyptic number.

28762863750 is an abundant number, since it is smaller than the sum of its proper divisors (51108506730).

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

28762863750 is an equidigital number, since it uses as much as digits as its factorization.

28762863750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852264 (or 852243 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 28762863750 in words is "twenty-eight billion, seven hundred sixty-two million, eight hundred sixty-three thousand, seven hundred fifty".