618488140636356 has 48 divisors (see below), whose sum is σ = 1450105612283328. Its totient is φ = 205168637721600.

The previous prime is 618488140636351. The next prime is 618488140636363. The reversal of 618488140636356 is 653636041884816.

It is not an unprimeable number, because it can be changed into a prime (618488140636351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67918750 + ... + 76484853.

It is an arithmetic number, because the mean of its divisors is an integer number (30210533589236).

Almost surely, 2^{618488140636356} is an apocalyptic number.

It is an amenable number.

618488140636356 is an abundant number, since it is smaller than the sum of its proper divisors (831617471646972).

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

618488140636356 is a wasteful number, since it uses less digits than its factorization.

618488140636356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144405332 (or 144405330 counting only the distinct ones).

The product of its (nonzero) digits is 477757440, while the sum is 69.

The spelling of 618488140636356 in words is "six hundred eighteen trillion, four hundred eighty-eight billion, one hundred forty million, six hundred thirty-six thousand, three hundred fifty-six".