28551856063 has 8 divisors (see below), whose sum is σ = 28641335888. Its totient is φ = 28462446144.

The previous prime is 28551856061. The next prime is 28551856093. The reversal of 28551856063 is 36065815582.

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 28551856063 - 2¹ = 28551856061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28551855998 and 28551856016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28551856061) 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, 870520 + ... + 902722.

It is an arithmetic number, because the mean of its divisors is an integer number (3580166986).

Almost surely, 2^28551856063 is an apocalyptic number.

28551856063 is a deficient number, since it is larger than the sum of its proper divisors (89479825).

28551856063 is a wasteful number, since it uses less digits than its factorization.

28551856063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34953.

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 28551856063 in words is "twenty-eight billion, five hundred fifty-one million, eight hundred fifty-six thousand, sixty-three".