12649768620804 has 72 divisors (see below), whose sum is σ = 37722607523328. Its totient is φ = 3497631874560.

The previous prime is 12649768620787. The next prime is 12649768620847. The reversal of 12649768620804 is 40802686794621.

12649768620804 is a `hidden beast` number, since 1 + 2 + 6 + 497 + 6 + 8 + 62 + 0 + 80 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 809629197 + ... + 809644820.

Almost surely, 2^{12649768620804} is an apocalyptic number.

12649768620804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12649768620804 is an abundant number, since it is smaller than the sum of its proper divisors (25072838902524).

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

12649768620804 is a wasteful number, since it uses less digits than its factorization.

12649768620804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619274065 (or 1619274060 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 12649768620804 in words is "twelve trillion, six hundred forty-nine billion, seven hundred sixty-eight million, six hundred twenty thousand, eight hundred four".