28857813067 has 8 divisors (see below), whose sum is σ = 29774485440. Its totient is φ = 27954925440.

The previous prime is 28857813053. The next prime is 28857813097. The reversal of 28857813067 is 76031875882.

It is a happy number.

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 28857813067 - 2¹⁵ = 28857780299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28857812999 and 28857813017.

It is not an unprimeable number, because it can be changed into a prime (28857813007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3441934 + ... + 3450307.

It is an arithmetic number, because the mean of its divisors is an integer number (3721810680).

Almost surely, 2^28857813067 is an apocalyptic number.

28857813067 is a deficient number, since it is larger than the sum of its proper divisors (916672373).

28857813067 is an equidigital number, since it uses as much as digits as its factorization.

28857813067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892373.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 28857813067 in words is "twenty-eight billion, eight hundred fifty-seven million, eight hundred thirteen thousand, sixty-seven".