439575046957 has 2 divisors, whose sum is σ = 439575046958. Its totient is φ = 439575046956.

The previous prime is 439575046921. The next prime is 439575046961. The reversal of 439575046957 is 759640575934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307565631396 + 132009415561 = 554586^2 + 363331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439575046957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (439575046907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219787523478 + 219787523479.

It is an arithmetic number, because the mean of its divisors is an integer number (219787523479).

Almost surely, 2^439575046957 is an apocalyptic number.

It is an amenable number.

439575046957 is a deficient number, since it is larger than the sum of its proper divisors (1).

439575046957 is an equidigital number, since it uses as much as digits as its factorization.

439575046957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884000, while the sum is 64.

The spelling of 439575046957 in words is "four hundred thirty-nine billion, five hundred seventy-five million, forty-six thousand, nine hundred fifty-seven".