28217739963 has 8 divisors (see below), whose sum is σ = 42998460928. Its totient is φ = 16124422824.

The previous prime is 28217739941. The next prime is 28217739967. The reversal of 28217739963 is 36993771282.

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

It is not a de Polignac number, because 28217739963 - 2¹⁷ = 28217608891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28217739967) 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, 671850931 + ... + 671850972.

It is an arithmetic number, because the mean of its divisors is an integer number (5374807616).

Almost surely, 2^28217739963 is an apocalyptic number.

28217739963 is a deficient number, since it is larger than the sum of its proper divisors (14780720965).

28217739963 is a wasteful number, since it uses less digits than its factorization.

28217739963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343701913.

The product of its digits is 6858432, while the sum is 57.

It can be divided in two parts, 28217 and 739963, that added together give a triangular number (768180 = T₁₂₃₉).

The spelling of 28217739963 in words is "twenty-eight billion, two hundred seventeen million, seven hundred thirty-nine thousand, nine hundred sixty-three".