28358133047 has 4 divisors (see below), whose sum is σ = 28823020536. Its totient is φ = 27893245560.

The previous prime is 28358133029. The next prime is 28358133071. The reversal of 28358133047 is 74033185382.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28358133047 is a prime.

It is a super-2 number, since 2×28358133047² (a number of 22 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 = 28358132989 and 28358133007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28358133017) 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, 232443653 + ... + 232443774.

It is an arithmetic number, because the mean of its divisors is an integer number (7205755134).

Almost surely, 2^28358133047 is an apocalyptic number.

28358133047 is a deficient number, since it is larger than the sum of its proper divisors (464887489).

28358133047 is an equidigital number, since it uses as much as digits as its factorization.

28358133047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464887488.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 28358133047 in words is "twenty-eight billion, three hundred fifty-eight million, one hundred thirty-three thousand, forty-seven".