43109346851 has 2 divisors, whose sum is σ = 43109346852. Its totient is φ = 43109346850.

The previous prime is 43109346823. The next prime is 43109346869. The reversal of 43109346851 is 15864390134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43109346851 - 2³⁴ = 25929477667 is a prime.

It is not a weakly prime, because it can be changed into another prime (43109346881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21554673425 + 21554673426.

It is an arithmetic number, because the mean of its divisors is an integer number (21554673426).

Almost surely, 2^43109346851 is an apocalyptic number.

43109346851 is a deficient number, since it is larger than the sum of its proper divisors (1).

43109346851 is an equidigital number, since it uses as much as digits as its factorization.

43109346851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 43109346851 in words is "forty-three billion, one hundred nine million, three hundred forty-six thousand, eight hundred fifty-one".