28361280047 has 8 divisors (see below), whose sum is σ = 30103020000. Its totient is φ = 26627698944.

The previous prime is 28361280019. The next prime is 28361280049. The reversal of 28361280047 is 74008216382.

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

It is a de Polignac number, because none of the positive numbers 2^k-28361280047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28361279986 and 28361280013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28361280049) 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, 2032547 + ... + 2046452.

It is an arithmetic number, because the mean of its divisors is an integer number (3762877500).

Almost surely, 2^28361280047 is an apocalyptic number.

28361280047 is a deficient number, since it is larger than the sum of its proper divisors (1741739953).

28361280047 is a wasteful number, since it uses less digits than its factorization.

28361280047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4079425.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 28361280047 in words is "twenty-eight billion, three hundred sixty-one million, two hundred eighty thousand, forty-seven".