13421402377 has 2 divisors, whose sum is σ = 13421402378. Its totient is φ = 13421402376.

The previous prime is 13421402363. The next prime is 13421402387. The reversal of 13421402377 is 77320412431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9265795081 + 4155607296 = 96259^2 + 64464^2 .

It is a cyclic number.

It is not a de Polignac number, because 13421402377 - 2⁷ = 13421402249 is a prime.

It is not a weakly prime, because it can be changed into another prime (13421402317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710701188 + 6710701189.

It is an arithmetic number, because the mean of its divisors is an integer number (6710701189).

Almost surely, 2^13421402377 is an apocalyptic number.

It is an amenable number.

13421402377 is a deficient number, since it is larger than the sum of its proper divisors (1).

13421402377 is an equidigital number, since it uses as much as digits as its factorization.

13421402377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 13421402377 in words is "thirteen billion, four hundred twenty-one million, four hundred two thousand, three hundred seventy-seven".