40770336329 has 2 divisors, whose sum is σ = 40770336330. Its totient is φ = 40770336328.

The previous prime is 40770336289. The next prime is 40770336359. The reversal of 40770336329 is 92363307704.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20655438400 + 20114897929 = 143720^2 + 141827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40770336329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40770336329.

It is not a weakly prime, because it can be changed into another prime (40770336359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20385168164 + 20385168165.

It is an arithmetic number, because the mean of its divisors is an integer number (20385168165).

Almost surely, 2^40770336329 is an apocalyptic number.

It is an amenable number.

40770336329 is a deficient number, since it is larger than the sum of its proper divisors (1).

40770336329 is an equidigital number, since it uses as much as digits as its factorization.

40770336329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 44.

The spelling of 40770336329 in words is "forty billion, seven hundred seventy million, three hundred thirty-six thousand, three hundred twenty-nine".