12001978763 has 2 divisors, whose sum is σ = 12001978764. Its totient is φ = 12001978762.

The previous prime is 12001978739. The next prime is 12001978789. The reversal of 12001978763 is 36787910021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12001978763 - 2¹⁰ = 12001977739 is a prime.

It is not a weakly prime, because it can be changed into another prime (12001978363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000989381 + 6000989382.

It is an arithmetic number, because the mean of its divisors is an integer number (6000989382).

Almost surely, 2^12001978763 is an apocalyptic number.

12001978763 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001978763 is an equidigital number, since it uses as much as digits as its factorization.

12001978763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 12001978763 in words is "twelve billion, one million, nine hundred seventy-eight thousand, seven hundred sixty-three".