242664631001 has 4 divisors (see below), whose sum is σ = 261331141092. Its totient is φ = 223998120912.

The previous prime is 242664630991. The next prime is 242664631049. The reversal of 242664631001 is 100136466242.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17969670601 + 224694960400 = 134051^2 + 474020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242664631001 is a prime.

It is a super-2 number, since 2×242664631001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242664631201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9333255026 + ... + 9333255051.

It is an arithmetic number, because the mean of its divisors is an integer number (65332785273).

Almost surely, 2^242664631001 is an apocalyptic number.

It is an amenable number.

242664631001 is a deficient number, since it is larger than the sum of its proper divisors (18666510091).

242664631001 is a wasteful number, since it uses less digits than its factorization.

242664631001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18666510090.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 242664631001 in words is "two hundred forty-two billion, six hundred sixty-four million, six hundred thirty-one thousand, one".