43000068451 has 2 divisors, whose sum is σ = 43000068452. Its totient is φ = 43000068450.

The previous prime is 43000068403. The next prime is 43000068467. The reversal of 43000068451 is 15486000034.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43000068451 - 2²⁷ = 42865850723 is a prime.

It is not a weakly prime, because it can be changed into another prime (43000008451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21500034225 + 21500034226.

It is an arithmetic number, because the mean of its divisors is an integer number (21500034226).

Almost surely, 2^43000068451 is an apocalyptic number.

43000068451 is a deficient number, since it is larger than the sum of its proper divisors (1).

43000068451 is an equidigital number, since it uses as much as digits as its factorization.

43000068451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 43000068451 its reverse (15486000034), we get a palindrome (58486068485).

The spelling of 43000068451 in words is "forty-three billion, sixty-eight thousand, four hundred fifty-one".