77003743673 has 2 divisors, whose sum is σ = 77003743674. Its totient is φ = 77003743672.

The previous prime is 77003743651. The next prime is 77003743681. The reversal of 77003743673 is 37634730077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74786934784 + 2216808889 = 273472^2 + 47083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77003743673 is a prime.

It is not a weakly prime, because it can be changed into another prime (77003743693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38501871836 + 38501871837.

It is an arithmetic number, because the mean of its divisors is an integer number (38501871837).

Almost surely, 2^77003743673 is an apocalyptic number.

It is an amenable number.

77003743673 is a deficient number, since it is larger than the sum of its proper divisors (1).

77003743673 is an equidigital number, since it uses as much as digits as its factorization.

77003743673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555848, while the sum is 47.

The spelling of 77003743673 in words is "seventy-seven billion, three million, seven hundred forty-three thousand, six hundred seventy-three".