43287597361 has 2 divisors, whose sum is σ = 43287597362. Its totient is φ = 43287597360.

The previous prime is 43287597347. The next prime is 43287597371. The reversal of 43287597361 is 16379578234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33080334400 + 10207262961 = 181880^2 + 101031^2 .

It is a cyclic number.

It is not a de Polignac number, because 43287597361 - 2³⁵ = 8927858993 is a prime.

It is a super-3 number, since 3×43287597361³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (43287597341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21643798680 + 21643798681.

It is an arithmetic number, because the mean of its divisors is an integer number (21643798681).

Almost surely, 2^43287597361 is an apocalyptic number.

It is an amenable number.

43287597361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43287597361 is an equidigital number, since it uses as much as digits as its factorization.

43287597361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 55.

The spelling of 43287597361 in words is "forty-three billion, two hundred eighty-seven million, five hundred ninety-seven thousand, three hundred sixty-one".