43974608497 has 2 divisors, whose sum is σ = 43974608498. Its totient is φ = 43974608496.

The previous prime is 43974608479. The next prime is 43974608551. The reversal of 43974608497 is 79480647934.

43974608497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (43974608479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39903658081 + 4070950416 = 199759^2 + 63804^2 .

It is a cyclic number.

It is not a de Polignac number, because 43974608497 - 2⁷ = 43974608369 is a prime.

It is not a weakly prime, because it can be changed into another prime (43974606497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21987304248 + 21987304249.

It is an arithmetic number, because the mean of its divisors is an integer number (21987304249).

Almost surely, 2^43974608497 is an apocalyptic number.

It is an amenable number.

43974608497 is a deficient number, since it is larger than the sum of its proper divisors (1).

43974608497 is an equidigital number, since it uses as much as digits as its factorization.

43974608497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36578304, while the sum is 61.

The spelling of 43974608497 in words is "forty-three billion, nine hundred seventy-four million, six hundred eight thousand, four hundred ninety-seven".