67572757573 has 2 divisors, whose sum is σ = 67572757574. Its totient is φ = 67572757572.

The previous prime is 67572757507. The next prime is 67572757579. The reversal of 67572757573 is 37575727576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65363569569 + 2209188004 = 255663^2 + 47002^2 .

It is a cyclic number.

It is not a de Polignac number, because 67572757573 - 2¹³ = 67572749381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67572757579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33786378786 + 33786378787.

It is an arithmetic number, because the mean of its divisors is an integer number (33786378787).

Almost surely, 2^67572757573 is an apocalyptic number.

It is an amenable number.

67572757573 is a deficient number, since it is larger than the sum of its proper divisors (1).

67572757573 is an equidigital number, since it uses as much as digits as its factorization.

67572757573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75631500, while the sum is 61.

The spelling of 67572757573 in words is "sixty-seven billion, five hundred seventy-two million, seven hundred fifty-seven thousand, five hundred seventy-three".