618518214020 has 24 divisors (see below), whose sum is σ = 1484443713984. Its totient is φ = 212063387616.

The previous prime is 618518214007. The next prime is 618518214037. The reversal of 618518214020 is 20412815816.

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, 2208993482 + ... + 2208993761.

It is an arithmetic number, because the mean of its divisors is an integer number (61851821416).

Almost surely, 2^618518214020 is an apocalyptic number.

It is an amenable number.

618518214020 is an abundant number, since it is smaller than the sum of its proper divisors (865925499964).

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

618518214020 is a wasteful number, since it uses less digits than its factorization.

618518214020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417987259 (or 4417987257 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 618518214020 in words is "six hundred eighteen billion, five hundred eighteen million, two hundred fourteen thousand, twenty".