242551405429 has 4 divisors (see below), whose sum is σ = 242767391776. Its totient is φ = 242335419084.

The previous prime is 242551405423. The next prime is 242551405433. The reversal of 242551405429 is 924504155242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242551405429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242551405423) 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, 107991489 + ... + 107993734.

It is an arithmetic number, because the mean of its divisors is an integer number (60691847944).

Almost surely, 2^242551405429 is an apocalyptic number.

It is an amenable number.

242551405429 is a deficient number, since it is larger than the sum of its proper divisors (215986347).

242551405429 is a wasteful number, since it uses less digits than its factorization.

242551405429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215986346.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 242551405429 in words is "two hundred forty-two billion, five hundred fifty-one million, four hundred five thousand, four hundred twenty-nine".