13640799841 has 2 divisors, whose sum is σ = 13640799842. Its totient is φ = 13640799840.

The previous prime is 13640799787. The next prime is 13640799869. The reversal of 13640799841 is 14899704631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11298627025 + 2342172816 = 106295^2 + 48396^2 .

It is a cyclic number.

It is not a de Polignac number, because 13640799841 - 2¹³ = 13640791649 is a prime.

It is not a weakly prime, because it can be changed into another prime (13640799041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6820399920 + 6820399921.

It is an arithmetic number, because the mean of its divisors is an integer number (6820399921).

Almost surely, 2^13640799841 is an apocalyptic number.

It is an amenable number.

13640799841 is a deficient number, since it is larger than the sum of its proper divisors (1).

13640799841 is an equidigital number, since it uses as much as digits as its factorization.

13640799841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 13640799841 in words is "thirteen billion, six hundred forty million, seven hundred ninety-nine thousand, eight hundred forty-one".