28476984358369 has 4 divisors (see below), whose sum is σ = 28491595434900. Its totient is φ = 28462373281840.

The previous prime is 28476984358357. The next prime is 28476984358421. The reversal of 28476984358369 is 96385348967482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20532788441344 + 7944195917025 = 4531312^2 + 2818545^2 .

It is a cyclic number.

It is not a de Polignac number, because 28476984358369 - 2¹⁹ = 28476983834081 is a prime.

It is a super-2 number, since 2×28476984358369² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28476984358292 and 28476984358301.

It is not an unprimeable number, because it can be changed into a prime (28476984358309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7305535342 + ... + 7305539239.

It is an arithmetic number, because the mean of its divisors is an integer number (7122898858725).

Almost surely, 2^{28476984358369} is an apocalyptic number.

It is an amenable number.

28476984358369 is a deficient number, since it is larger than the sum of its proper divisors (14611076531).

28476984358369 is a wasteful number, since it uses less digits than its factorization.

28476984358369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14611076530.

The product of its digits is 15049359360, while the sum is 82.

The spelling of 28476984358369 in words is "twenty-eight trillion, four hundred seventy-six billion, nine hundred eighty-four million, three hundred fifty-eight thousand, three hundred sixty-nine".