13173787069 has 2 divisors, whose sum is σ = 13173787070. Its totient is φ = 13173787068.

The previous prime is 13173787061. The next prime is 13173787079. The reversal of 13173787069 is 96078737131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12058894969 + 1114892100 = 109813^2 + 33390^2 .

It is a cyclic number.

It is not a de Polignac number, because 13173787069 - 2³ = 13173787061 is a prime.

It is a super-2 number, since 2×13173787069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13173787061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6586893534 + 6586893535.

It is an arithmetic number, because the mean of its divisors is an integer number (6586893535).

Almost surely, 2^13173787069 is an apocalyptic number.

It is an amenable number.

13173787069 is a deficient number, since it is larger than the sum of its proper divisors (1).

13173787069 is an equidigital number, since it uses as much as digits as its factorization.

13173787069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1333584, while the sum is 52.

The spelling of 13173787069 in words is "thirteen billion, one hundred seventy-three million, seven hundred eighty-seven thousand, sixty-nine".