77167373797 has 2 divisors, whose sum is σ = 77167373798. Its totient is φ = 77167373796.

The previous prime is 77167373783. The next prime is 77167373809. The reversal of 77167373797 is 79737376177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55513956996 + 21653416801 = 235614^2 + 147151^2 .

It is a cyclic number.

It is not a de Polignac number, because 77167373797 - 2¹⁹ = 77166849509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77167373497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38583686898 + 38583686899.

It is an arithmetic number, because the mean of its divisors is an integer number (38583686899).

Almost surely, 2^77167373797 is an apocalyptic number.

It is an amenable number.

77167373797 is a deficient number, since it is larger than the sum of its proper divisors (1).

77167373797 is an equidigital number, since it uses as much as digits as its factorization.

77167373797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57177414, while the sum is 64.

The spelling of 77167373797 in words is "seventy-seven billion, one hundred sixty-seven million, three hundred seventy-three thousand, seven hundred ninety-seven".