242139594508 has 24 divisors (see below), whose sum is σ = 484290851072. Its totient is φ = 103771612944.

The previous prime is 242139594493. The next prime is 242139594607. The reversal of 242139594508 is 805495931242.

It is a happy number.

242139594508 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528441 + ... + 1679407.

Almost surely, 2^242139594508 is an apocalyptic number.

242139594508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

242139594508 is an abundant number, since it is smaller than the sum of its proper divisors (242151256564).

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

242139594508 is a wasteful number, since it uses less digits than its factorization.

242139594508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208261 (or 208259 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 242139594508 in words is "two hundred forty-two billion, one hundred thirty-nine million, five hundred ninety-four thousand, five hundred eight".