242560899457 has 4 divisors (see below), whose sum is σ = 242572524480. Its totient is φ = 242549274436.

The previous prime is 242560899443. The next prime is 242560899481. The reversal of 242560899457 is 754998065242.

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 not a de Polignac number, because 242560899457 - 2³⁵ = 208201161089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242560899395 and 242560899404.

It is not an unprimeable number, because it can be changed into a prime (242560899437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5781157 + ... + 5822962.

It is an arithmetic number, because the mean of its divisors is an integer number (60643131120).

Almost surely, 2^242560899457 is an apocalyptic number.

It is an amenable number.

242560899457 is a deficient number, since it is larger than the sum of its proper divisors (11625023).

242560899457 is a wasteful number, since it uses less digits than its factorization.

242560899457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11625022.

The product of its (nonzero) digits is 43545600, while the sum is 61.

The spelling of 242560899457 in words is "two hundred forty-two billion, five hundred sixty million, eight hundred ninety-nine thousand, four hundred fifty-seven".