12821675772 has 24 divisors (see below), whose sum is σ = 31217993856. Its totient is φ = 4088070448.

The previous prime is 12821675771. The next prime is 12821675813. The reversal of 12821675772 is 27757612821.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12821675771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23227398 + ... + 23227949.

It is an arithmetic number, because the mean of its divisors is an integer number (1300749744).

Almost surely, 2^12821675772 is an apocalyptic number.

12821675772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12821675772 is an abundant number, since it is smaller than the sum of its proper divisors (18396318084).

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

12821675772 is a wasteful number, since it uses less digits than its factorization.

12821675772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46455377 (or 46455375 counting only the distinct ones).

The product of its digits is 658560, while the sum is 48.

The spelling of 12821675772 in words is "twelve billion, eight hundred twenty-one million, six hundred seventy-five thousand, seven hundred seventy-two".