242267720128 has 56 divisors (see below), whose sum is σ = 573316803072. Its totient is φ = 99314713344.

The previous prime is 242267720113. The next prime is 242267720129. The reversal of 242267720128 is 821027762242.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242267720129) 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, 11745700 + ... + 11766307.

Almost surely, 2^242267720128 is an apocalyptic number.

242267720128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

242267720128 is an abundant number, since it is smaller than the sum of its proper divisors (331049082944).

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

242267720128 is a wasteful number, since it uses less digits than its factorization.

242267720128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23512049 (or 23512039 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The spelling of 242267720128 in words is "two hundred forty-two billion, two hundred sixty-seven million, seven hundred twenty thousand, one hundred twenty-eight".