618356212 has 12 divisors (see below), whose sum is σ = 1119438180. Its totient is φ = 298516736.

The previous prime is 618356201. The next prime is 618356243. The reversal of 618356212 is 212653816.

It can be written as a sum of positive squares in 2 ways, for example, as 100520676 + 517835536 = 10026^2 + 22756^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2665213 + ... + 2665444.

It is an arithmetic number, because the mean of its divisors is an integer number (93286515).

Almost surely, 2^618356212 is an apocalyptic number.

It is an amenable number.

618356212 is a deficient number, since it is larger than the sum of its proper divisors (501081968).

618356212 is a wasteful number, since it uses less digits than its factorization.

618356212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330690 (or 5330688 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 618356212 is about 24866.7692312451. The cubic root of 618356212 is about 851.9476501004.

The spelling of 618356212 in words is "six hundred eighteen million, three hundred fifty-six thousand, two hundred twelve".