77541206047 has 2 divisors, whose sum is σ = 77541206048. Its totient is φ = 77541206046.

The previous prime is 77541205997. The next prime is 77541206059. The reversal of 77541206047 is 74060214577.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77541206047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77541205994 and 77541206012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77541276047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38770603023 + 38770603024.

It is an arithmetic number, because the mean of its divisors is an integer number (38770603024).

Almost surely, 2^77541206047 is an apocalyptic number.

77541206047 is a deficient number, since it is larger than the sum of its proper divisors (1).

77541206047 is an equidigital number, since it uses as much as digits as its factorization.

77541206047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 77541206047 in words is "seventy-seven billion, five hundred forty-one million, two hundred six thousand, forty-seven".