40577843443 has 2 divisors, whose sum is σ = 40577843444. Its totient is φ = 40577843442.

The previous prime is 40577843431. The next prime is 40577843479. The reversal of 40577843443 is 34434877504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40577843443 - 2⁹ = 40577842931 is a prime.

It is a super-2 number, since 2×40577843443² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40577843413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20288921721 + 20288921722.

It is an arithmetic number, because the mean of its divisors is an integer number (20288921722).

Almost surely, 2^40577843443 is an apocalyptic number.

40577843443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40577843443 is an equidigital number, since it uses as much as digits as its factorization.

40577843443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4515840, while the sum is 49.

The spelling of 40577843443 in words is "forty billion, five hundred seventy-seven million, eight hundred forty-three thousand, four hundred forty-three".