40755339643 has 2 divisors, whose sum is σ = 40755339644. Its totient is φ = 40755339642.

The previous prime is 40755339629. The next prime is 40755339649. The reversal of 40755339643 is 34693355704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40755339643 - 2²⁵ = 40721785211 is a prime.

It is not a weakly prime, because it can be changed into another prime (40755339649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20377669821 + 20377669822.

It is an arithmetic number, because the mean of its divisors is an integer number (20377669822).

Almost surely, 2^40755339643 is an apocalyptic number.

40755339643 is a deficient number, since it is larger than the sum of its proper divisors (1).

40755339643 is an equidigital number, since it uses as much as digits as its factorization.

40755339643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 49.

The spelling of 40755339643 in words is "forty billion, seven hundred fifty-five million, three hundred thirty-nine thousand, six hundred forty-three".