618268085892 has 60 divisors (see below), whose sum is σ = 1655696278236. Its totient is φ = 201062787840.

The previous prime is 618268085891. The next prime is 618268085989. The reversal of 618268085892 is 298580862816.

618268085892 is a `hidden beast` number, since 618 + 2 + 6 + 8 + 0 + 8 + 5 + 8 + 9 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 264426322176 + 353841763716 = 514224^2 + 594846^2 .

It is not an unprimeable number, because it can be changed into a prime (618268085891) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23257873 + ... + 23284440.

Almost surely, 2^618268085892 is an apocalyptic number.

It is an amenable number.

618268085892 is an abundant number, since it is smaller than the sum of its proper divisors (1037428192344).

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

618268085892 is a wasteful number, since it uses less digits than its factorization.

618268085892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46542370 (or 46542359 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 63.

The spelling of 618268085892 in words is "six hundred eighteen billion, two hundred sixty-eight million, eighty-five thousand, eight hundred ninety-two".