40990000673 has 2 divisors, whose sum is σ = 40990000674. Its totient is φ = 40990000672.

The previous prime is 40990000669. The next prime is 40990000703. The reversal of 40990000673 is 37600009904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35529234064 + 5460766609 = 188492^2 + 73897^2 .

It is a cyclic number.

It is not a de Polignac number, because 40990000673 - 2² = 40990000669 is a prime.

It is not a weakly prime, because it can be changed into another prime (40993000673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20495000336 + 20495000337.

It is an arithmetic number, because the mean of its divisors is an integer number (20495000337).

Almost surely, 2^40990000673 is an apocalyptic number.

It is an amenable number.

40990000673 is a deficient number, since it is larger than the sum of its proper divisors (1).

40990000673 is an equidigital number, since it uses as much as digits as its factorization.

40990000673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The spelling of 40990000673 in words is "forty billion, nine hundred ninety million, six hundred seventy-three", and thus it is an aban number.