43927395797 has 2 divisors, whose sum is σ = 43927395798. Its totient is φ = 43927395796.

The previous prime is 43927395793. The next prime is 43927395887. The reversal of 43927395797 is 79759372934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30328570801 + 13598824996 = 174151^2 + 116614^2 .

It is a cyclic number.

It is not a de Polignac number, because 43927395797 - 2² = 43927395793 is a prime.

It is a super-2 number, since 2×43927395797² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43927395793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21963697898 + 21963697899.

It is an arithmetic number, because the mean of its divisors is an integer number (21963697899).

Almost surely, 2^43927395797 is an apocalyptic number.

It is an amenable number.

43927395797 is a deficient number, since it is larger than the sum of its proper divisors (1).

43927395797 is an equidigital number, since it uses as much as digits as its factorization.

43927395797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90016920, while the sum is 65.

The spelling of 43927395797 in words is "forty-three billion, nine hundred twenty-seven million, three hundred ninety-five thousand, seven hundred ninety-seven".