12007653781 has 2 divisors, whose sum is σ = 12007653782. Its totient is φ = 12007653780.

The previous prime is 12007653767. The next prime is 12007653811. The reversal of 12007653781 is 18735670021.

12007653781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11153260881 + 854392900 = 105609^2 + 29230^2 .

It is a cyclic number.

It is not a de Polignac number, because 12007653781 - 2⁷ = 12007653653 is a prime.

It is a super-2 number, since 2×12007653781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12007653751) by changing a digit.

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 as a sum of consecutive naturals, namely, 6003826890 + 6003826891.

It is an arithmetic number, because the mean of its divisors is an integer number (6003826891).

Almost surely, 2^12007653781 is an apocalyptic number.

It is an amenable number.

12007653781 is a deficient number, since it is larger than the sum of its proper divisors (1).

12007653781 is an equidigital number, since it uses as much as digits as its factorization.

12007653781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 12007653781 in words is "twelve billion, seven million, six hundred fifty-three thousand, seven hundred eighty-one".