242745566753538 has 24 divisors (see below), whose sum is σ = 530603141492268. Its totient is φ = 80199125298432.

The previous prime is 242745566753513. The next prime is 242745566753579. The reversal of 242745566753538 is 835357665547242.

It is a happy number.

242745566753538 is a `hidden beast` number, since 2 + 4 + 2 + 7 + 4 + 5 + 56 + 6 + 7 + 535 + 38 = 666.

242745566753538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 237471089549409 + 5274477204129 = 15410097^2 + 2296623^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59671966195 + ... + 59671970262.

Almost surely, 2^{242745566753538} is an apocalyptic number.

242745566753538 is an abundant number, since it is smaller than the sum of its proper divisors (287857574738730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242745566753538 is a wasteful number, since it uses less digits than its factorization.

242745566753538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119343936578 (or 119343936575 counting only the distinct ones).

The product of its digits is 5080320000, while the sum is 72.

The spelling of 242745566753538 in words is "two hundred forty-two trillion, seven hundred forty-five billion, five hundred sixty-six million, seven hundred fifty-three thousand, five hundred thirty-eight".