13640011433 has 2 divisors, whose sum is σ = 13640011434. Its totient is φ = 13640011432.

The previous prime is 13640011397. The next prime is 13640011447. The reversal of 13640011433 is 33411004631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13421917609 + 218093824 = 115853^2 + 14768^2 .

It is a cyclic number.

It is not a de Polignac number, because 13640011433 - 2⁶ = 13640011369 is a prime.

It is not a weakly prime, because it can be changed into another prime (13640011453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6820005716 + 6820005717.

It is an arithmetic number, because the mean of its divisors is an integer number (6820005717).

Almost surely, 2^13640011433 is an apocalyptic number.

It is an amenable number.

13640011433 is a deficient number, since it is larger than the sum of its proper divisors (1).

13640011433 is an equidigital number, since it uses as much as digits as its factorization.

13640011433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 13640011433 in words is "thirteen billion, six hundred forty million, eleven thousand, four hundred thirty-three".