43090680761 has 2 divisors, whose sum is σ = 43090680762. Its totient is φ = 43090680760.

The previous prime is 43090680749. The next prime is 43090680767. The reversal of 43090680761 is 16708609034.

43090680761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41180990761 + 1909690000 = 202931^2 + 43700^2 .

It is a cyclic number.

It is not a de Polignac number, because 43090680761 - 2¹⁸ = 43090418617 is a prime.

It is not a weakly prime, because it can be changed into another prime (43090680767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21545340380 + 21545340381.

It is an arithmetic number, because the mean of its divisors is an integer number (21545340381).

Almost surely, 2^43090680761 is an apocalyptic number.

It is an amenable number.

43090680761 is a deficient number, since it is larger than the sum of its proper divisors (1).

43090680761 is an equidigital number, since it uses as much as digits as its factorization.

43090680761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 43090680761 in words is "forty-three billion, ninety million, six hundred eighty thousand, seven hundred sixty-one".