29973609613 has 2 divisors, whose sum is σ = 29973609614. Its totient is φ = 29973609612.

The previous prime is 29973609587. The next prime is 29973609647. The reversal of 29973609613 is 31690637992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19700368164 + 10273241449 = 140358^2 + 101357^2 .

It is a cyclic number.

It is not a de Polignac number, because 29973609613 - 2¹⁷ = 29973478541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29973609013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14986804806 + 14986804807.

It is an arithmetic number, because the mean of its divisors is an integer number (14986804807).

Almost surely, 2^29973609613 is an apocalyptic number.

It is an amenable number.

29973609613 is a deficient number, since it is larger than the sum of its proper divisors (1).

29973609613 is an equidigital number, since it uses as much as digits as its factorization.

29973609613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 55.

The spelling of 29973609613 in words is "twenty-nine billion, nine hundred seventy-three million, six hundred nine thousand, six hundred thirteen".