43864546087 has 2 divisors, whose sum is σ = 43864546088. Its totient is φ = 43864546086.

The previous prime is 43864546049. The next prime is 43864546091. The reversal of 43864546087 is 78064546834.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43864546087 - 2²⁷ = 43730328359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43864540087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21932273043 + 21932273044.

It is an arithmetic number, because the mean of its divisors is an integer number (21932273044).

Almost surely, 2^43864546087 is an apocalyptic number.

43864546087 is a deficient number, since it is larger than the sum of its proper divisors (1).

43864546087 is an equidigital number, since it uses as much as digits as its factorization.

43864546087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 43864546087 in words is "forty-three billion, eight hundred sixty-four million, five hundred forty-six thousand, eighty-seven".