12684763476 has 324 divisors, whose sum is σ = 41657170464. Its totient is φ = 3241909440.

The previous prime is 12684763471. The next prime is 12684763499. The reversal of 12684763476 is 67436748621.

12684763476 is a `hidden beast` number, since 1 + 26 + 84 + 76 + 3 + 476 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12684763471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 14300305 + ... + 14301191.

Almost surely, 2^12684763476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12684763476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20828585232).

12684763476 is an abundant number, since it is smaller than the sum of its proper divisors (28972406988).

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

12684763476 is a wasteful number, since it uses less digits than its factorization.

12684763476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000 (or 977 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 12684763476 in words is "twelve billion, six hundred eighty-four million, seven hundred sixty-three thousand, four hundred seventy-six".