40784842313 has 2 divisors, whose sum is σ = 40784842314. Its totient is φ = 40784842312.

The previous prime is 40784842297. The next prime is 40784842381. The reversal of 40784842313 is 31324848704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35211771904 + 5573070409 = 187648^2 + 74653^2 .

It is a cyclic number.

It is not a de Polignac number, because 40784842313 - 2⁴ = 40784842297 is a prime.

It is not a weakly prime, because it can be changed into another prime (40784842213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20392421156 + 20392421157.

It is an arithmetic number, because the mean of its divisors is an integer number (20392421157).

Almost surely, 2^40784842313 is an apocalyptic number.

It is an amenable number.

40784842313 is a deficient number, since it is larger than the sum of its proper divisors (1).

40784842313 is an equidigital number, since it uses as much as digits as its factorization.

40784842313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 40784842313 in words is "forty billion, seven hundred eighty-four million, eight hundred forty-two thousand, three hundred thirteen".