77160424447 has 2 divisors, whose sum is σ = 77160424448. Its totient is φ = 77160424446.

The previous prime is 77160424427. The next prime is 77160424459. The reversal of 77160424447 is 74442406177.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77160424447 is a prime.

It is a super-2 number, since 2×77160424447² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77160424397 and 77160424406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77160424417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38580212223 + 38580212224.

It is an arithmetic number, because the mean of its divisors is an integer number (38580212224).

Almost surely, 2^77160424447 is an apocalyptic number.

77160424447 is a deficient number, since it is larger than the sum of its proper divisors (1).

77160424447 is an equidigital number, since it uses as much as digits as its factorization.

77160424447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1053696, while the sum is 46.

The spelling of 77160424447 in words is "seventy-seven billion, one hundred sixty million, four hundred twenty-four thousand, four hundred forty-seven".