12969961951 has 2 divisors, whose sum is σ = 12969961952. Its totient is φ = 12969961950.

The previous prime is 12969961937. The next prime is 12969961957. The reversal of 12969961951 is 15916996921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12969961951 - 2¹⁷ = 12969830879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12969961957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6484980975 + 6484980976.

It is an arithmetic number, because the mean of its divisors is an integer number (6484980976).

Almost surely, 2^12969961951 is an apocalyptic number.

12969961951 is a deficient number, since it is larger than the sum of its proper divisors (1).

12969961951 is an equidigital number, since it uses as much as digits as its factorization.

12969961951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2361960, while the sum is 58.

The spelling of 12969961951 in words is "twelve billion, nine hundred sixty-nine million, nine hundred sixty-one thousand, nine hundred fifty-one".