29677799969 has 2 divisors, whose sum is σ = 29677799970. Its totient is φ = 29677799968.

The previous prime is 29677799953. The next prime is 29677800017. The reversal of 29677799969 is 96999777692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27556000000 + 2121799969 = 166000^2 + 46063^2 .

It is a cyclic number.

It is not a de Polignac number, because 29677799969 - 2⁴ = 29677799953 is a prime.

It is a super-2 number, since 2×29677799969² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 29677799893 and 29677799902.

It is not a weakly prime, because it can be changed into another prime (29677799909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14838899984 + 14838899985.

It is an arithmetic number, because the mean of its divisors is an integer number (14838899985).

Almost surely, 2^29677799969 is an apocalyptic number.

It is an amenable number.

29677799969 is a deficient number, since it is larger than the sum of its proper divisors (1).

29677799969 is an equidigital number, since it uses as much as digits as its factorization.

29677799969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458274104, while the sum is 80.

The spelling of 29677799969 in words is "twenty-nine billion, six hundred seventy-seven million, seven hundred ninety-nine thousand, nine hundred sixty-nine".