73788655688743 has 2 divisors, whose sum is σ = 73788655688744. Its totient is φ = 73788655688742.

The previous prime is 73788655688723. The next prime is 73788655688789. The reversal of 73788655688743 is 34788655688737.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73788655688743 - 2²¹ = 73788653591591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73788655688723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36894327844371 + 36894327844372.

It is an arithmetic number, because the mean of its divisors is an integer number (36894327844372).

Almost surely, 2^{73788655688743} is an apocalyptic number.

73788655688743 is a deficient number, since it is larger than the sum of its proper divisors (1).

73788655688743 is an equidigital number, since it uses as much as digits as its factorization.

73788655688743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45519667200, while the sum is 85.

The spelling of 73788655688743 in words is "seventy-three trillion, seven hundred eighty-eight billion, six hundred fifty-five million, six hundred eighty-eight thousand, seven hundred forty-three".