40304542613 has 2 divisors, whose sum is σ = 40304542614. Its totient is φ = 40304542612.

The previous prime is 40304542589. The next prime is 40304542711. The reversal of 40304542613 is 31624540304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40066827889 + 237714724 = 200167^2 + 15418^2 .

It is a cyclic number.

It is not a de Polignac number, because 40304542613 - 2²⁸ = 40036107157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40304542613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40306542613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20152271306 + 20152271307.

It is an arithmetic number, because the mean of its divisors is an integer number (20152271307).

Almost surely, 2^40304542613 is an apocalyptic number.

It is an amenable number.

40304542613 is a deficient number, since it is larger than the sum of its proper divisors (1).

40304542613 is an equidigital number, since it uses as much as digits as its factorization.

40304542613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 32.

The spelling of 40304542613 in words is "forty billion, three hundred four million, five hundred forty-two thousand, six hundred thirteen".