618051632 has 40 divisors (see below), whose sum is σ = 1311090192. Its totient is φ = 279910400.

The previous prime is 618051601. The next prime is 618051667. The reversal of 618051632 is 236150816.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43208 + ... + 55704.

Almost surely, 2^618051632 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 618051632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655545096).

618051632 is an abundant number, since it is smaller than the sum of its proper divisors (693038560).

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

618051632 is a wasteful number, since it uses less digits than its factorization.

618051632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12797 (or 12791 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 618051632 is about 24860.6442394400. The cubic root of 618051632 is about 851.8077475510.

The spelling of 618051632 in words is "six hundred eighteen million, fifty-one thousand, six hundred thirty-two".