12374762921 has 2 divisors, whose sum is σ = 12374762922. Its totient is φ = 12374762920.

The previous prime is 12374762903. The next prime is 12374762923. The reversal of 12374762921 is 12926747321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10757838400 + 1616924521 = 103720^2 + 40211^2 .

It is a cyclic number.

It is not a de Polignac number, because 12374762921 - 2¹⁰ = 12374761897 is a prime.

Together with 12374762923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12374762923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6187381460 + 6187381461.

It is an arithmetic number, because the mean of its divisors is an integer number (6187381461).

Almost surely, 2^12374762921 is an apocalyptic number.

It is an amenable number.

12374762921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12374762921 is an equidigital number, since it uses as much as digits as its factorization.

12374762921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The spelling of 12374762921 in words is "twelve billion, three hundred seventy-four million, seven hundred sixty-two thousand, nine hundred twenty-one".