28466413331 has 4 divisors (see below), whose sum is σ = 28479140832. Its totient is φ = 28453685832.

The previous prime is 28466413259. The next prime is 28466413333. The reversal of 28466413331 is 13331466482.

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

It is a cyclic number.

It is not a de Polignac number, because 28466413331 - 2¹⁸ = 28466151187 is a prime.

It is a super-2 number, since 2×28466413331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28466413333) 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, 6360395 + ... + 6364868.

It is an arithmetic number, because the mean of its divisors is an integer number (7119785208).

Almost surely, 2^28466413331 is an apocalyptic number.

28466413331 is a deficient number, since it is larger than the sum of its proper divisors (12727501).

28466413331 is a wasteful number, since it uses less digits than its factorization.

28466413331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12727500.

The product of its digits is 248832, while the sum is 41.

The spelling of 28466413331 in words is "twenty-eight billion, four hundred sixty-six million, four hundred thirteen thousand, three hundred thirty-one".