437140344497 has 2 divisors, whose sum is σ = 437140344498. Its totient is φ = 437140344496.

The previous prime is 437140344467. The next prime is 437140344503. The reversal of 437140344497 is 794443041734.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415817335921 + 21323008576 = 644839^2 + 146024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-437140344497 is a prime.

It is not a weakly prime, because it can be changed into another prime (437140344437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218570172248 + 218570172249.

It is an arithmetic number, because the mean of its divisors is an integer number (218570172249).

Almost surely, 2^437140344497 is an apocalyptic number.

It is an amenable number.

437140344497 is a deficient number, since it is larger than the sum of its proper divisors (1).

437140344497 is an equidigital number, since it uses as much as digits as its factorization.

437140344497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 50.

The spelling of 437140344497 in words is "four hundred thirty-seven billion, one hundred forty million, three hundred forty-four thousand, four hundred ninety-seven".