77673050447 has 2 divisors, whose sum is σ = 77673050448. Its totient is φ = 77673050446.

The previous prime is 77673050407. The next prime is 77673050459. The reversal of 77673050447 is 74405037677.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77673050447 - 2⁶ = 77673050383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77673050395 and 77673050404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77673050407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38836525223 + 38836525224.

It is an arithmetic number, because the mean of its divisors is an integer number (38836525224).

Almost surely, 2^77673050447 is an apocalyptic number.

77673050447 is a deficient number, since it is larger than the sum of its proper divisors (1).

77673050447 is an equidigital number, since it uses as much as digits as its factorization.

77673050447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3457440, while the sum is 50.

The spelling of 77673050447 in words is "seventy-seven billion, six hundred seventy-three million, fifty thousand, four hundred forty-seven".