29748684809 has 2 divisors, whose sum is σ = 29748684810. Its totient is φ = 29748684808.

The previous prime is 29748684803. The next prime is 29748684853. The reversal of 29748684809 is 90848684792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22040371600 + 7708313209 = 148460^2 + 87797^2 .

It is a cyclic number.

It is not a de Polignac number, because 29748684809 - 2¹⁶ = 29748619273 is a prime.

It is not a weakly prime, because it can be changed into another prime (29748684803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14874342404 + 14874342405.

It is an arithmetic number, because the mean of its divisors is an integer number (14874342405).

Almost surely, 2^29748684809 is an apocalyptic number.

It is an amenable number.

29748684809 is a deficient number, since it is larger than the sum of its proper divisors (1).

29748684809 is an equidigital number, since it uses as much as digits as its factorization.

29748684809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55738368, while the sum is 65.

The spelling of 29748684809 in words is "twenty-nine billion, seven hundred forty-eight million, six hundred eighty-four thousand, eight hundred nine".