40345542067 has 2 divisors, whose sum is σ = 40345542068. Its totient is φ = 40345542066.

The previous prime is 40345541981. The next prime is 40345542091. The reversal of 40345542067 is 76024554304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40345542067 - 2⁷ = 40345541939 is a prime.

It is not a weakly prime, because it can be changed into another prime (40345542967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20172771033 + 20172771034.

It is an arithmetic number, because the mean of its divisors is an integer number (20172771034).

Almost surely, 2^40345542067 is an apocalyptic number.

40345542067 is a deficient number, since it is larger than the sum of its proper divisors (1).

40345542067 is an equidigital number, since it uses as much as digits as its factorization.

40345542067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 40345542067 in words is "forty billion, three hundred forty-five million, five hundred forty-two thousand, sixty-seven".