618851052 has 72 divisors (see below), whose sum is σ = 1669973760. Its totient is φ = 192659040.

The previous prime is 618850997. The next prime is 618851069. The reversal of 618851052 is 250158816.

618851052 is a `hidden beast` number, since 61 + 88 + 510 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 618850998 and 618851016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42193 + ... + 54935.

It is an arithmetic number, because the mean of its divisors is an integer number (23194080).

Almost surely, 2^618851052 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 618851052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (834986880).

618851052 is an abundant number, since it is smaller than the sum of its proper divisors (1051122708).

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

618851052 is a wasteful number, since it uses less digits than its factorization.

618851052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843 (or 12838 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 618851052 is about 24876.7170663655. The cubic root of 618851052 is about 852.1748467447.

The spelling of 618851052 in words is "six hundred eighteen million, eight hundred fifty-one thousand, fifty-two".