242490578707882 has 4 divisors (see below), whose sum is σ = 363735868061826. Its totient is φ = 121245289353940.

The previous prime is 242490578707859. The next prime is 242490578708033. The reversal of 242490578707882 is 288707875094242.

It is a Cunningham number, because it is equal to 15572109²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 242490578707881 + 1 = 15572109^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60622644676969 + ... + 60622644676972.

Almost surely, 2^{242490578707882} is an apocalyptic number.

242490578707882 is a deficient number, since it is larger than the sum of its proper divisors (121245289353944).

242490578707882 is a wasteful number, since it uses less digits than its factorization.

242490578707882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121245289353943.

The product of its (nonzero) digits is 1011548160, while the sum is 73.

The spelling of 242490578707882 in words is "two hundred forty-two trillion, four hundred ninety billion, five hundred seventy-eight million, seven hundred seven thousand, eight hundred eighty-two".