4242644462425 has 6 divisors (see below), whose sum is σ = 5260879133438. Its totient is φ = 3394115569920.

The previous prime is 4242644462393. The next prime is 4242644462467. The reversal of 4242644462425 is 5242644462424.

It can be written as a sum of positive squares in 3 ways, for example, as 122998906944 + 4119645555481 = 350712^2 + 2029691^2 .

It is not a de Polignac number, because 4242644462425 - 2⁵ = 4242644462393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84852889224 + ... + 84852889273.

Almost surely, 2^{4242644462425} is an apocalyptic number.

It is an amenable number.

4242644462425 is a deficient number, since it is larger than the sum of its proper divisors (1018234671013).

4242644462425 is a wasteful number, since it uses less digits than its factorization.

4242644462425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169705778507 (or 169705778502 counting only the distinct ones).

The product of its digits is 11796480, while the sum is 49.

Subtracting 4242644462425 from its reverse (5242644462424), we obtain a palindrome (999999999999).

The spelling of 4242644462425 in words is "four trillion, two hundred forty-two billion, six hundred forty-four million, four hundred sixty-two thousand, four hundred twenty-five".