12684295020 has 24 divisors (see below), whose sum is σ = 35516026224. Its totient is φ = 3382478656.

The previous prime is 12684294967. The next prime is 12684295021. The reversal of 12684295020 is 2059248621.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12684295020.

It is not an unprimeable number, because it can be changed into a prime (12684295021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105702399 + ... + 105702518.

It is an arithmetic number, because the mean of its divisors is an integer number (1479834426).

Almost surely, 2^12684295020 is an apocalyptic number.

12684295020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12684295020 is an abundant number, since it is smaller than the sum of its proper divisors (22831731204).

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

12684295020 is a wasteful number, since it uses less digits than its factorization.

12684295020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211404929 (or 211404927 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 12684295020 in words is "twelve billion, six hundred eighty-four million, two hundred ninety-five thousand, twenty".