618811030 has 16 divisors (see below), whose sum is σ = 1114247664. Its totient is φ = 247438240.

The previous prime is 618811027. The next prime is 618811031. The reversal of 618811030 is 30118816.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 618811030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618811031) 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, 25065 + ... + 43195.

It is an arithmetic number, because the mean of its divisors is an integer number (69640479).

Almost surely, 2^618811030 is an apocalyptic number.

618811030 is a deficient number, since it is larger than the sum of its proper divisors (495436634).

618811030 is a wasteful number, since it uses less digits than its factorization.

618811030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21551.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 618811030 is about 24875.9126465744. The cubic root of 618811030 is about 852.1564758854.

Adding to 618811030 its reverse (30118816), we get a palindrome (648929846).

The spelling of 618811030 in words is "six hundred eighteen million, eight hundred eleven thousand, thirty".