618669343854 has 48 divisors (see below), whose sum is σ = 1390444124160. Its totient is φ = 206171551800.

The previous prime is 618669343807. The next prime is 618669343867. The reversal of 618669343854 is 458343966816.

618669343854 is a `hidden beast` number, since 6 + 1 + 8 + 66 + 93 + 438 + 54 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 618669343791 and 618669343800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1811667 + ... + 2125905.

It is an arithmetic number, because the mean of its divisors is an integer number (28967585920).

Almost surely, 2^618669343854 is an apocalyptic number.

618669343854 is an abundant number, since it is smaller than the sum of its proper divisors (771774780306).

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

618669343854 is a wasteful number, since it uses less digits than its factorization.

618669343854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318307 (or 318295 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 63.

The spelling of 618669343854 in words is "six hundred eighteen billion, six hundred sixty-nine million, three hundred forty-three thousand, eight hundred fifty-four".