40310432777 has 2 divisors, whose sum is σ = 40310432778. Its totient is φ = 40310432776.

The previous prime is 40310432761. The next prime is 40310432791. The reversal of 40310432777 is 77723401304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37303445881 + 3006986896 = 193141^2 + 54836^2 .

It is a cyclic number.

It is not a de Polignac number, because 40310432777 - 2⁴ = 40310432761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40310432777.

It is not a weakly prime, because it can be changed into another prime (40310432077) 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, 20155216388 + 20155216389.

It is an arithmetic number, because the mean of its divisors is an integer number (20155216389).

Almost surely, 2^40310432777 is an apocalyptic number.

It is an amenable number.

40310432777 is a deficient number, since it is larger than the sum of its proper divisors (1).

40310432777 is an equidigital number, since it uses as much as digits as its factorization.

40310432777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 38.

The spelling of 40310432777 in words is "forty billion, three hundred ten million, four hundred thirty-two thousand, seven hundred seventy-seven".