28341645831 has 24 divisors (see below), whose sum is σ = 41079729600. Its totient is φ = 18829066176.

The previous prime is 28341645817. The next prime is 28341645859. The reversal of 28341645831 is 13854614382.

28341645831 is a `hidden beast` number, since 2 + 8 + 3 + 4 + 1 + 64 + 583 + 1 = 666.

It is not a de Polignac number, because 28341645831 - 2⁶ = 28341645767 is a prime.

It is a super-2 number, since 2×28341645831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28341643831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6514645 + ... + 6518993.

It is an arithmetic number, because the mean of its divisors is an integer number (1711655400).

Almost surely, 2^28341645831 is an apocalyptic number.

28341645831 is a deficient number, since it is larger than the sum of its proper divisors (12738083769).

28341645831 is a wasteful number, since it uses less digits than its factorization.

28341645831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6695 (or 6692 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 28341645831 in words is "twenty-eight billion, three hundred forty-one million, six hundred forty-five thousand, eight hundred thirty-one".