43401344297 has 2 divisors, whose sum is σ = 43401344298. Its totient is φ = 43401344296.

The previous prime is 43401344227. The next prime is 43401344341. The reversal of 43401344297 is 79244310434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28830681616 + 14570662681 = 169796^2 + 120709^2 .

It is a cyclic number.

It is not a de Polignac number, because 43401344297 - 2³² = 39106377001 is a prime.

It is not a weakly prime, because it can be changed into another prime (43401344227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21700672148 + 21700672149.

It is an arithmetic number, because the mean of its divisors is an integer number (21700672149).

Almost surely, 2^43401344297 is an apocalyptic number.

It is an amenable number.

43401344297 is a deficient number, since it is larger than the sum of its proper divisors (1).

43401344297 is an equidigital number, since it uses as much as digits as its factorization.

43401344297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 43401344297 in words is "forty-three billion, four hundred one million, three hundred forty-four thousand, two hundred ninety-seven".