618776328 has 32 divisors (see below), whose sum is σ = 1550324160. Its totient is φ = 205807680.

The previous prime is 618776309. The next prime is 618776341. The reversal of 618776328 is 823677816.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16900 + ... + 39027.

It is an arithmetic number, because the mean of its divisors is an integer number (48447630).

Almost surely, 2^618776328 is an apocalyptic number.

It is an amenable number.

618776328 is an abundant number, since it is smaller than the sum of its proper divisors (931547832).

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

618776328 is a wasteful number, since it uses less digits than its factorization.

618776328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56397 (or 56393 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 618776328 is about 24875.2151347481. The cubic root of 618776328 is about 852.1405463660.

The spelling of 618776328 in words is "six hundred eighteen million, seven hundred seventy-six thousand, three hundred twenty-eight".