4357042054649 has 2 divisors, whose sum is σ = 4357042054650. Its totient is φ = 4357042054648.

The previous prime is 4357042054643. The next prime is 4357042054691. The reversal of 4357042054649 is 9464502407534.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3299425210624 + 1057616844025 = 1816432^2 + 1028405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4357042054649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4357042054649.

It is not a weakly prime, because it can be changed into another prime (4357042054643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2178521027324 + 2178521027325.

It is an arithmetic number, because the mean of its divisors is an integer number (2178521027325).

Almost surely, 2^{4357042054649} is an apocalyptic number.

It is an amenable number.

4357042054649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4357042054649 is an equidigital number, since it uses as much as digits as its factorization.

4357042054649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14515200, while the sum is 53.

The spelling of 4357042054649 in words is "four trillion, three hundred fifty-seven billion, forty-two million, fifty-four thousand, six hundred forty-nine".