73400740723 has 2 divisors, whose sum is σ = 73400740724. Its totient is φ = 73400740722.

The previous prime is 73400740703. The next prime is 73400740733. The reversal of 73400740723 is 32704700437.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73400740723 - 2⁹ = 73400740211 is a prime.

It is not a weakly prime, because it can be changed into another prime (73400740703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36700370361 + 36700370362.

It is an arithmetic number, because the mean of its divisors is an integer number (36700370362).

Almost surely, 2^73400740723 is an apocalyptic number.

73400740723 is a deficient number, since it is larger than the sum of its proper divisors (1).

73400740723 is an equidigital number, since it uses as much as digits as its factorization.

73400740723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 37.

The spelling of 73400740723 in words is "seventy-three billion, four hundred million, seven hundred forty thousand, seven hundred twenty-three".