77483167808021 has 2 divisors, whose sum is σ = 77483167808022. Its totient is φ = 77483167808020.

The previous prime is 77483167807993. The next prime is 77483167808027. The reversal of 77483167808021 is 12080876138477.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77467194387025 + 15973420996 = 8801545^2 + 126386^2 .

It is a cyclic number.

It is not a de Polignac number, because 77483167808021 - 2³⁴ = 77465987938837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77483167808027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38741583904010 + 38741583904011.

It is an arithmetic number, because the mean of its divisors is an integer number (38741583904011).

Almost surely, 2^{77483167808021} is an apocalyptic number.

It is an amenable number.

77483167808021 is a deficient number, since it is larger than the sum of its proper divisors (1).

77483167808021 is an equidigital number, since it uses as much as digits as its factorization.

77483167808021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25288704, while the sum is 62.

The spelling of 77483167808021 in words is "seventy-seven trillion, four hundred eighty-three billion, one hundred sixty-seven million, eight hundred eight thousand, twenty-one".