43625136803723 has 2 divisors, whose sum is σ = 43625136803724. Its totient is φ = 43625136803722.

The previous prime is 43625136803719. The next prime is 43625136803777. The reversal of 43625136803723 is 32730863152634.

43625136803723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43625136803723 - 2² = 43625136803719 is a prime.

It is a super-2 number, since 2×43625136803723² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43625136803123) 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, 21812568401861 + 21812568401862.

It is an arithmetic number, because the mean of its divisors is an integer number (21812568401862).

Almost surely, 2^{43625136803723} is an apocalyptic number.

43625136803723 is a deficient number, since it is larger than the sum of its proper divisors (1).

43625136803723 is an equidigital number, since it uses as much as digits as its factorization.

43625136803723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 53.

The spelling of 43625136803723 in words is "forty-three trillion, six hundred twenty-five billion, one hundred thirty-six million, eight hundred three thousand, seven hundred twenty-three".