67972455269 has 2 divisors, whose sum is σ = 67972455270. Its totient is φ = 67972455268.

The previous prime is 67972455211. The next prime is 67972455311. The reversal of 67972455269 is 96255427976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48228552100 + 19743903169 = 219610^2 + 140513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67972455269 is a prime.

It is a super-2 number, since 2×67972455269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67972475269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33986227634 + 33986227635.

It is an arithmetic number, because the mean of its divisors is an integer number (33986227635).

Almost surely, 2^67972455269 is an apocalyptic number.

It is an amenable number.

67972455269 is a deficient number, since it is larger than the sum of its proper divisors (1).

67972455269 is an equidigital number, since it uses as much as digits as its factorization.

67972455269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57153600, while the sum is 62.

The spelling of 67972455269 in words is "sixty-seven billion, nine hundred seventy-two million, four hundred fifty-five thousand, two hundred sixty-nine".