13798788929 has 2 divisors, whose sum is σ = 13798788930. Its totient is φ = 13798788928.

The previous prime is 13798788901. The next prime is 13798788947. The reversal of 13798788929 is 92988789731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12544000000 + 1254788929 = 112000^2 + 35423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13798788929 is a prime.

It is not a weakly prime, because it can be changed into another prime (13798788959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6899394464 + 6899394465.

It is an arithmetic number, because the mean of its divisors is an integer number (6899394465).

Almost surely, 2^13798788929 is an apocalyptic number.

It is an amenable number.

13798788929 is a deficient number, since it is larger than the sum of its proper divisors (1).

13798788929 is an equidigital number, since it uses as much as digits as its factorization.

13798788929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109734912, while the sum is 71.

The spelling of 13798788929 in words is "thirteen billion, seven hundred ninety-eight million, seven hundred eighty-eight thousand, nine hundred twenty-nine".