7667334110921 has 2 divisors, whose sum is σ = 7667334110922. Its totient is φ = 7667334110920.

The previous prime is 7667334110759. The next prime is 7667334110957. The reversal of 7667334110921 is 1290114337667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7330772851600 + 336561259321 = 2707540^2 + 580139^2 .

It is a cyclic number.

It is not a de Polignac number, because 7667334110921 - 2⁴² = 3269287599817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7667334110921.

It is not a weakly prime, because it can be changed into another prime (7667334110521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833667055460 + 3833667055461.

It is an arithmetic number, because the mean of its divisors is an integer number (3833667055461).

Almost surely, 2^{7667334110921} is an apocalyptic number.

It is an amenable number.

7667334110921 is a deficient number, since it is larger than the sum of its proper divisors (1).

7667334110921 is an equidigital number, since it uses as much as digits as its factorization.

7667334110921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 7667334110921 in words is "seven trillion, six hundred sixty-seven billion, three hundred thirty-four million, one hundred ten thousand, nine hundred twenty-one".