12347772651 has 16 divisors (see below), whose sum is σ = 18316272000. Its totient is φ = 8221374504.

The previous prime is 12347772641. The next prime is 12347772659. The reversal of 12347772651 is 15627774321.

12347772651 is a `hidden beast` number, since 123 + 477 + 7 + 2 + 6 + 51 = 666.

It is not a de Polignac number, because 12347772651 - 2⁶ = 12347772587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12347772597 and 12347772606.

It is not an unprimeable number, because it can be changed into a prime (12347772659) 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 15 ways as a sum of consecutive naturals, for example, 269301 + ... + 311798.

It is an arithmetic number, because the mean of its divisors is an integer number (1144767000).

Almost surely, 2^12347772651 is an apocalyptic number.

12347772651 is a deficient number, since it is larger than the sum of its proper divisors (5968499349).

12347772651 is an equidigital number, since it uses as much as digits as its factorization.

12347772651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581895 (or 581889 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The spelling of 12347772651 in words is "twelve billion, three hundred forty-seven million, seven hundred seventy-two thousand, six hundred fifty-one".