240891225847 has 4 divisors (see below), whose sum is σ = 244974128040. Its totient is φ = 236808323656.

The previous prime is 240891225821. The next prime is 240891225859. The reversal of 240891225847 is 748522198042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 748522198042 = 2 ⋅374261099021.

It is a cyclic number.

It is not a de Polignac number, because 240891225847 - 2¹¹ = 240891223799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240891225794 and 240891225803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240891225947) 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, 2041451008 + ... + 2041451125.

It is an arithmetic number, because the mean of its divisors is an integer number (61243532010).

Almost surely, 2^240891225847 is an apocalyptic number.

240891225847 is a deficient number, since it is larger than the sum of its proper divisors (4082902193).

240891225847 is an equidigital number, since it uses as much as digits as its factorization.

240891225847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082902192.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 240891225847 in words is "two hundred forty billion, eight hundred ninety-one million, two hundred twenty-five thousand, eight hundred forty-seven".