242702524557 has 8 divisors (see below), whose sum is σ = 359559295680. Its totient is φ = 161801683020.

The previous prime is 242702524489. The next prime is 242702524583. The reversal of 242702524557 is 755425207242.

242702524557 is a `hidden beast` number, since 2 + 4 + 2 + 70 + 2 + 5 + 24 + 557 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-242702524557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242702528557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4494491169 + ... + 4494491222.

It is an arithmetic number, because the mean of its divisors is an integer number (44944911960).

Almost surely, 2^242702524557 is an apocalyptic number.

242702524557 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

242702524557 is a deficient number, since it is larger than the sum of its proper divisors (116856771123).

242702524557 is an equidigital number, since it uses as much as digits as its factorization.

242702524557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988982400 (or 8988982394 counting only the distinct ones).

The product of its (nonzero) digits is 1568000, while the sum is 45.

The spelling of 242702524557 in words is "two hundred forty-two billion, seven hundred two million, five hundred twenty-four thousand, five hundred fifty-seven".