43264055012861 has 2 divisors, whose sum is σ = 43264055012862. Its totient is φ = 43264055012860.

The previous prime is 43264055012839. The next prime is 43264055012873. The reversal of 43264055012861 is 16821055046234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42796534112836 + 467520900025 = 6541906^2 + 683755^2 .

It is a cyclic number.

It is not a de Polignac number, because 43264055012861 - 2²² = 43264050818557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43264055012821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21632027506430 + 21632027506431.

It is an arithmetic number, because the mean of its divisors is an integer number (21632027506431).

Almost surely, 2^{43264055012861} is an apocalyptic number.

It is an amenable number.

43264055012861 is a deficient number, since it is larger than the sum of its proper divisors (1).

43264055012861 is an equidigital number, since it uses as much as digits as its factorization.

43264055012861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 43264055012861 in words is "forty-three trillion, two hundred sixty-four billion, fifty-five million, twelve thousand, eight hundred sixty-one".