40234350173749 has 2 divisors, whose sum is σ = 40234350173750. Its totient is φ = 40234350173748.

The previous prime is 40234350173711. The next prime is 40234350173761. The reversal of 40234350173749 is 94737105343204.

40234350173749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37439040375025 + 2795309798724 = 6118745^2 + 1671918^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40234350173749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40234350173696 and 40234350173705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40234350173789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20117175086874 + 20117175086875.

It is an arithmetic number, because the mean of its divisors is an integer number (20117175086875).

Almost surely, 2^{40234350173749} is an apocalyptic number.

It is an amenable number.

40234350173749 is a deficient number, since it is larger than the sum of its proper divisors (1).

40234350173749 is an equidigital number, since it uses as much as digits as its factorization.

40234350173749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 40234350173749 in words is "forty trillion, two hundred thirty-four billion, three hundred fifty million, one hundred seventy-three thousand, seven hundred forty-nine".