40745624443 has 2 divisors, whose sum is σ = 40745624444. Its totient is φ = 40745624442.

The previous prime is 40745624347. The next prime is 40745624449. The reversal of 40745624443 is 34442654704.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40745624443 - 2⁹ = 40745623931 is a prime.

It is a super-2 number, since 2×40745624443² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40745624443.

It is not a weakly prime, because it can be changed into another prime (40745624449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20372812221 + 20372812222.

It is an arithmetic number, because the mean of its divisors is an integer number (20372812222).

Almost surely, 2^40745624443 is an apocalyptic number.

40745624443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40745624443 is an equidigital number, since it uses as much as digits as its factorization.

40745624443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 43.

The spelling of 40745624443 in words is "forty billion, seven hundred forty-five million, six hundred twenty-four thousand, four hundred forty-three".