618258872 has 64 divisors (see below), whose sum is σ = 1474848000. Its totient is φ = 240868320.

The previous prime is 618258811. The next prime is 618258877. The reversal of 618258872 is 278852816.

618258872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618258877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19943 + ... + 40425.

It is an arithmetic number, because the mean of its divisors is an integer number (23044500).

Almost surely, 2^618258872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618258872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737424000).

618258872 is an abundant number, since it is smaller than the sum of its proper divisors (856589128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618258872 is a wasteful number, since it uses less digits than its factorization.

618258872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20521 (or 20503 counting only the distinct ones).

The product of its digits is 430080, while the sum is 47.

The square root of 618258872 is about 24864.8119236804. The cubic root of 618258872 is about 851.9029439723.

The spelling of 618258872 in words is "six hundred eighteen million, two hundred fifty-eight thousand, eight hundred seventy-two".