77367091161623 has 2 divisors, whose sum is σ = 77367091161624. Its totient is φ = 77367091161622.

The previous prime is 77367091161571. The next prime is 77367091161641. The reversal of 77367091161623 is 32616119076377.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77367091161623 - 2¹⁸ = 77367090899479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77367091161223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38683545580811 + 38683545580812.

It is an arithmetic number, because the mean of its divisors is an integer number (38683545580812).

Almost surely, 2^{77367091161623} is an apocalyptic number.

77367091161623 is a deficient number, since it is larger than the sum of its proper divisors (1).

77367091161623 is an equidigital number, since it uses as much as digits as its factorization.

77367091161623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12002256, while the sum is 59.

The spelling of 77367091161623 in words is "seventy-seven trillion, three hundred sixty-seven billion, ninety-one million, one hundred sixty-one thousand, six hundred twenty-three".