431441059657 has 2 divisors, whose sum is σ = 431441059658. Its totient is φ = 431441059656.

The previous prime is 431441059619. The next prime is 431441059663. The reversal of 431441059657 is 756950144134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270203475721 + 161237583936 = 519811^2 + 401544^2 .

It is a cyclic number.

It is not a de Polignac number, because 431441059657 - 2²³ = 431432671049 is a prime.

It is a super-3 number, since 3×431441059657³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 431441059657.

It is not a weakly prime, because it can be changed into another prime (431441059607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215720529828 + 215720529829.

It is an arithmetic number, because the mean of its divisors is an integer number (215720529829).

Almost surely, 2^431441059657 is an apocalyptic number.

It is an amenable number.

431441059657 is a deficient number, since it is larger than the sum of its proper divisors (1).

431441059657 is an equidigital number, since it uses as much as digits as its factorization.

431441059657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 431441059657 in words is "four hundred thirty-one billion, four hundred forty-one million, fifty-nine thousand, six hundred fifty-seven".