618281049 has 8 divisors (see below), whose sum is σ = 825628320. Its totient is φ = 411560576.

The previous prime is 618281011. The next prime is 618281057. The reversal of 618281049 is 940182816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 618281049 - 2¹⁶ = 618215513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 618280998 and 618281016.

It is not an unprimeable number, because it can be changed into a prime (618281089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154392 + ... + 158345.

It is an arithmetic number, because the mean of its divisors is an integer number (103203540).

Almost surely, 2^618281049 is an apocalyptic number.

It is an amenable number.

618281049 is a deficient number, since it is larger than the sum of its proper divisors (207347271).

618281049 is a wasteful number, since it uses less digits than its factorization.

618281049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313399.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 618281049 is about 24865.2578711744. The cubic root of 618281049 is about 851.9131297949.

The spelling of 618281049 in words is "six hundred eighteen million, two hundred eighty-one thousand, forty-nine".