6811772328953 has 2 divisors, whose sum is σ = 6811772328954. Its totient is φ = 6811772328952.

The previous prime is 6811772328901. The next prime is 6811772329013. The reversal of 6811772328953 is 3598232771186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5443836239209 + 1367936089744 = 2333203^2 + 1169588^2 .

It is a cyclic number.

It is not a de Polignac number, because 6811772328953 - 2¹² = 6811772324857 is a prime.

It is a super-2 number, since 2×6811772328953² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6811772328353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3405886164476 + 3405886164477.

It is an arithmetic number, because the mean of its divisors is an integer number (3405886164477).

Almost surely, 2^{6811772328953} is an apocalyptic number.

It is an amenable number.

6811772328953 is a deficient number, since it is larger than the sum of its proper divisors (1).

6811772328953 is an equidigital number, since it uses as much as digits as its factorization.

6811772328953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 62.

The spelling of 6811772328953 in words is "six trillion, eight hundred eleven billion, seven hundred seventy-two million, three hundred twenty-eight thousand, nine hundred fifty-three".