40641352387 has 2 divisors, whose sum is σ = 40641352388. Its totient is φ = 40641352386.

The previous prime is 40641352351. The next prime is 40641352471. The reversal of 40641352387 is 78325314604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40641352387 is a prime.

It is not a weakly prime, because it can be changed into another prime (40641352987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20320676193 + 20320676194.

It is an arithmetic number, because the mean of its divisors is an integer number (20320676194).

Almost surely, 2^40641352387 is an apocalyptic number.

40641352387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40641352387 is an equidigital number, since it uses as much as digits as its factorization.

40641352387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 40641352387 in words is "forty billion, six hundred forty-one million, three hundred fifty-two thousand, three hundred eighty-seven".