242664630872 has 16 divisors (see below), whose sum is σ = 455003572200. Its totient is φ = 121330344960.

The previous prime is 242664630851. The next prime is 242664630877. The reversal of 242664630872 is 278036466242.

It is a super-2 number, since 2×242664630872² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242664630872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242664630877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366872 + ... + 787352.

Almost surely, 2^242664630872 is an apocalyptic number.

It is an amenable number.

242664630872 is a deficient number, since it is larger than the sum of its proper divisors (212338941328).

242664630872 is a wasteful number, since it uses less digits than its factorization.

242664630872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492626 (or 492622 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 50.

The spelling of 242664630872 in words is "two hundred forty-two billion, six hundred sixty-four million, six hundred thirty thousand, eight hundred seventy-two".