40502094013 has 2 divisors, whose sum is σ = 40502094014. Its totient is φ = 40502094012.

The previous prime is 40502094011. The next prime is 40502094029. The reversal of 40502094013 is 31049020504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33722547769 + 6779546244 = 183637^2 + 82338^2 .

It is a cyclic number.

It is not a de Polignac number, because 40502094013 - 2¹ = 40502094011 is a prime.

Together with 40502094011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40502094011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20251047006 + 20251047007.

It is an arithmetic number, because the mean of its divisors is an integer number (20251047007).

Almost surely, 2^40502094013 is an apocalyptic number.

It is an amenable number.

40502094013 is a deficient number, since it is larger than the sum of its proper divisors (1).

40502094013 is an equidigital number, since it uses as much as digits as its factorization.

40502094013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 40502094013 in words is "forty billion, five hundred two million, ninety-four thousand, thirteen".