40452254369 has 2 divisors, whose sum is σ = 40452254370. Its totient is φ = 40452254368.

The previous prime is 40452254363. The next prime is 40452254377. The reversal of 40452254369 is 96345225404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40427134225 + 25120144 = 201065^2 + 5012^2 .

It is a cyclic number.

It is not a de Polignac number, because 40452254369 - 2²⁰ = 40451205793 is a prime.

It is a super-2 number, since 2×40452254369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40452254363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20226127184 + 20226127185.

It is an arithmetic number, because the mean of its divisors is an integer number (20226127185).

Almost surely, 2^40452254369 is an apocalyptic number.

It is an amenable number.

40452254369 is a deficient number, since it is larger than the sum of its proper divisors (1).

40452254369 is an equidigital number, since it uses as much as digits as its factorization.

40452254369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 40452254369 in words is "forty billion, four hundred fifty-two million, two hundred fifty-four thousand, three hundred sixty-nine".