40315808077 has 2 divisors, whose sum is σ = 40315808078. Its totient is φ = 40315808076.

The previous prime is 40315808063. The next prime is 40315808101. The reversal of 40315808077 is 77080851304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40170581476 + 145226601 = 200426^2 + 12051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40315808077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40315848077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20157904038 + 20157904039.

It is an arithmetic number, because the mean of its divisors is an integer number (20157904039).

Almost surely, 2^40315808077 is an apocalyptic number.

It is an amenable number.

40315808077 is a deficient number, since it is larger than the sum of its proper divisors (1).

40315808077 is an equidigital number, since it uses as much as digits as its factorization.

40315808077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 40315808077 in words is "forty billion, three hundred fifteen million, eight hundred eight thousand, seventy-seven".