13429769639977 has 2 divisors, whose sum is σ = 13429769639978. Its totient is φ = 13429769639976.

The previous prime is 13429769639971. The next prime is 13429769640143. The reversal of 13429769639977 is 77993696792431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9123414209001 + 4306355430976 = 3020499^2 + 2075176^2 .

It is a cyclic number.

It is not a de Polignac number, because 13429769639977 - 2³⁵ = 13395409901609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13429769639977.

It is not a weakly prime, because it can be changed into another prime (13429769639971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6714884819988 + 6714884819989.

It is an arithmetic number, because the mean of its divisors is an integer number (6714884819989).

Almost surely, 2^{13429769639977} is an apocalyptic number.

It is an amenable number.

13429769639977 is a deficient number, since it is larger than the sum of its proper divisors (1).

13429769639977 is an equidigital number, since it uses as much as digits as its factorization.

13429769639977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5833096416, while the sum is 82.

The spelling of 13429769639977 in words is "thirteen trillion, four hundred twenty-nine billion, seven hundred sixty-nine million, six hundred thirty-nine thousand, nine hundred seventy-seven".