28818292857 has 8 divisors (see below), whose sum is σ = 38606497440. Its totient is φ = 19121141760.

The previous prime is 28818292847. The next prime is 28818292859. The reversal of 28818292857 is 75829281882.

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

It is not a de Polignac number, because 28818292857 - 2⁷ = 28818292729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28818292857.

It is not an unprimeable number, because it can be changed into a prime (28818292859) 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 7 ways as a sum of consecutive naturals, for example, 22762632 + ... + 22763897.

It is an arithmetic number, because the mean of its divisors is an integer number (4825812180).

Almost surely, 2^28818292857 is an apocalyptic number.

It is an amenable number.

28818292857 is a deficient number, since it is larger than the sum of its proper divisors (9788204583).

28818292857 is a wasteful number, since it uses less digits than its factorization.

28818292857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45526743.

The product of its digits is 10321920, while the sum is 60.

The spelling of 28818292857 in words is "twenty-eight billion, eight hundred eighteen million, two hundred ninety-two thousand, eight hundred fifty-seven".