618193946680 has 16 divisors (see below), whose sum is σ = 1390936380120. Its totient is φ = 247277578656.

The previous prime is 618193946659. The next prime is 618193946693. The reversal of 618193946680 is 86649391816.

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, 7727424294 + ... + 7727424373.

Almost surely, 2^618193946680 is an apocalyptic number.

It is an amenable number.

618193946680 is an abundant number, since it is smaller than the sum of its proper divisors (772742433440).

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

618193946680 is a wasteful number, since it uses less digits than its factorization.

618193946680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15454848678 (or 15454848674 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 618193946680 in words is "six hundred eighteen billion, one hundred ninety-three million, nine hundred forty-six thousand, six hundred eighty".