29996772961 has 2 divisors, whose sum is σ = 29996772962. Its totient is φ = 29996772960.

The previous prime is 29996772931. The next prime is 29996772989. The reversal of 29996772961 is 16927769992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25298493025 + 4698279936 = 159055^2 + 68544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29996772961 is a prime.

It is not a weakly prime, because it can be changed into another prime (29996772931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14998386480 + 14998386481.

It is an arithmetic number, because the mean of its divisors is an integer number (14998386481).

Almost surely, 2^29996772961 is an apocalyptic number.

It is an amenable number.

29996772961 is a deficient number, since it is larger than the sum of its proper divisors (1).

29996772961 is an equidigital number, since it uses as much as digits as its factorization.

29996772961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46294416, while the sum is 67.

The spelling of 29996772961 in words is "twenty-nine billion, nine hundred ninety-six million, seven hundred seventy-two thousand, nine hundred sixty-one".