28758056060987 has 8 divisors (see below), whose sum is σ = 31373793788592. Its totient is φ = 26142546499200.

The previous prime is 28758056060977. The next prime is 28758056061001. The reversal of 28758056060987 is 78906065085782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28758056060987 - 2²⁸ = 28757787625531 is a prime.

It is a super-2 number, since 2×28758056060987² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28758056060987.

It is not an unprimeable number, because it can be changed into a prime (28758056060927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56777858 + ... + 57282119.

It is an arithmetic number, because the mean of its divisors is an integer number (3921724223574).

Almost surely, 2^{28758056060987} is an apocalyptic number.

28758056060987 is a deficient number, since it is larger than the sum of its proper divisors (2615737727605).

28758056060987 is a wasteful number, since it uses less digits than its factorization.

28758056060987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114082909.

The product of its (nonzero) digits is 406425600, while the sum is 71.

The spelling of 28758056060987 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty thousand, nine hundred eighty-seven".