77144652341 has 2 divisors, whose sum is σ = 77144652342. Its totient is φ = 77144652340.

The previous prime is 77144652259. The next prime is 77144652353. The reversal of 77144652341 is 14325644177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77133952900 + 10699441 = 277730^2 + 3271^2 .

It is a cyclic number.

It is not a de Polignac number, because 77144652341 - 2²² = 77140458037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77144652292 and 77144652301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77144652371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38572326170 + 38572326171.

It is an arithmetic number, because the mean of its divisors is an integer number (38572326171).

Almost surely, 2^77144652341 is an apocalyptic number.

It is an amenable number.

77144652341 is a deficient number, since it is larger than the sum of its proper divisors (1).

77144652341 is an equidigital number, since it uses as much as digits as its factorization.

77144652341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 44.

The spelling of 77144652341 in words is "seventy-seven billion, one hundred forty-four million, six hundred fifty-two thousand, three hundred forty-one".