16388407467269 has 2 divisors, whose sum is σ = 16388407467270. Its totient is φ = 16388407467268.

The previous prime is 16388407467253. The next prime is 16388407467301. The reversal of 16388407467269 is 96276470488361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14443116168100 + 1945291299169 = 3800410^2 + 1394737^2 .

It is a cyclic number.

It is not a de Polignac number, because 16388407467269 - 2⁴ = 16388407467253 is a prime.

It is a super-2 number, since 2×16388407467269² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16388407467209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8194203733634 + 8194203733635.

It is an arithmetic number, because the mean of its divisors is an integer number (8194203733635).

Almost surely, 2^{16388407467269} is an apocalyptic number.

It is an amenable number.

16388407467269 is a deficient number, since it is larger than the sum of its proper divisors (1).

16388407467269 is an equidigital number, since it uses as much as digits as its factorization.

16388407467269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 585252864, while the sum is 71.

The spelling of 16388407467269 in words is "sixteen trillion, three hundred eighty-eight billion, four hundred seven million, four hundred sixty-seven thousand, two hundred sixty-nine".