618369894 has 12 divisors (see below), whose sum is σ = 1339801476. Its totient is φ = 206123292.

The previous prime is 618369889. The next prime is 618369901. The reversal of 618369894 is 498963816.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 618369894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17176924 + ... + 17176959.

It is an arithmetic number, because the mean of its divisors is an integer number (111650123).

Almost surely, 2^618369894 is an apocalyptic number.

618369894 is an abundant number, since it is smaller than the sum of its proper divisors (721431582).

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

618369894 is a wasteful number, since it uses less digits than its factorization.

618369894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34353891 (or 34353888 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 618369894 is about 24867.0443358273. The cubic root of 618369894 is about 851.9539335670.

The spelling of 618369894 in words is "six hundred eighteen million, three hundred sixty-nine thousand, eight hundred ninety-four".