228025873861 has 4 divisors (see below), whose sum is σ = 228169922112. Its totient is φ = 227881825612.

The previous prime is 228025873787. The next prime is 228025873879. The reversal of 228025873861 is 168378520822.

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 228025873861 - 2¹⁵ = 228025841093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228025873799 and 228025873808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228025873891) 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, 72021751 + ... + 72024916.

It is an arithmetic number, because the mean of its divisors is an integer number (57042480528).

Almost surely, 2^228025873861 is an apocalyptic number.

It is an amenable number.

228025873861 is a deficient number, since it is larger than the sum of its proper divisors (144048251).

228025873861 is a wasteful number, since it uses less digits than its factorization.

228025873861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144048250.

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

The spelling of 228025873861 in words is "two hundred twenty-eight billion, twenty-five million, eight hundred seventy-three thousand, eight hundred sixty-one".