28341681852 has 48 divisors (see below), whose sum is σ = 76386143232. Its totient is φ = 8083188480.

The previous prime is 28341681833. The next prime is 28341681871. The reversal of 28341681852 is 25818614382.

It is an interprime number because it is at equal distance from previous prime (28341681833) and next prime (28341681871).

It is a super-2 number, since 2×28341681852² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6312748 + ... + 6317235.

It is an arithmetic number, because the mean of its divisors is an integer number (1591377984).

Almost surely, 2^28341681852 is an apocalyptic number.

28341681852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28341681852 is an abundant number, since it is smaller than the sum of its proper divisors (48044461380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28341681852 is a wasteful number, since it uses less digits than its factorization.

28341681852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12630018 (or 12630016 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The spelling of 28341681852 in words is "twenty-eight billion, three hundred forty-one million, six hundred eighty-one thousand, eight hundred fifty-two".