40405861003 has 2 divisors, whose sum is σ = 40405861004. Its totient is φ = 40405861002.

The previous prime is 40405860977. The next prime is 40405861033. The reversal of 40405861003 is 30016850404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40405861003 - 2¹³ = 40405852811 is a prime.

It is not a weakly prime, because it can be changed into another prime (40405861033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20202930501 + 20202930502.

It is an arithmetic number, because the mean of its divisors is an integer number (20202930502).

Almost surely, 2^40405861003 is an apocalyptic number.

40405861003 is a deficient number, since it is larger than the sum of its proper divisors (1).

40405861003 is an equidigital number, since it uses as much as digits as its factorization.

40405861003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 40405861003 in words is "forty billion, four hundred five million, eight hundred sixty-one thousand, three".