40580376649 has 2 divisors, whose sum is σ = 40580376650. Its totient is φ = 40580376648.

The previous prime is 40580376583. The next prime is 40580376653. The reversal of 40580376649 is 94667308504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22310799424 + 18269577225 = 149368^2 + 135165^2 .

It is a cyclic number.

It is not a de Polignac number, because 40580376649 - 2³¹ = 38432893001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40580376596 and 40580376605.

It is not a weakly prime, because it can be changed into another prime (40580376659) 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, 20290188324 + 20290188325.

It is an arithmetic number, because the mean of its divisors is an integer number (20290188325).

Almost surely, 2^40580376649 is an apocalyptic number.

It is an amenable number.

40580376649 is a deficient number, since it is larger than the sum of its proper divisors (1).

40580376649 is an equidigital number, since it uses as much as digits as its factorization.

40580376649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 40580376649 in words is "forty billion, five hundred eighty million, three hundred seventy-six thousand, six hundred forty-nine".