242498557009890 has 96 divisors (see below), whose sum is σ = 642617305574400. Its totient is φ = 63429002386560.

The previous prime is 242498557009859. The next prime is 242498557009921. The reversal of 242498557009890 is 98900755894242.

242498557009890 is a `hidden beast` number, since 2 + 4 + 2 + 49 + 8 + 5 + 570 + 0 + 9 + 8 + 9 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (242498557009859) and next prime (242498557009921).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59548530 + ... + 63490349.

It is an arithmetic number, because the mean of its divisors is an integer number (6693930266400).

Almost surely, 2^{242498557009890} is an apocalyptic number.

242498557009890 is an abundant number, since it is smaller than the sum of its proper divisors (400118748564510).

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

242498557009890 is a wasteful number, since it uses less digits than its factorization.

242498557009890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123039312 (or 123039309 counting only the distinct ones).

The product of its (nonzero) digits is 522547200, while the sum is 72.

The spelling of 242498557009890 in words is "two hundred forty-two trillion, four hundred ninety-eight billion, five hundred fifty-seven million, nine thousand, eight hundred ninety".