618621674 has 16 divisors (see below), whose sum is σ = 1012728960. Its totient is φ = 281069760.

The previous prime is 618621623. The next prime is 618621683. The reversal of 618621674 is 476126816.

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, 63407 + ... + 72509.

It is an arithmetic number, because the mean of its divisors is an integer number (63295560).

Almost surely, 2^618621674 is an apocalyptic number.

618621674 is a deficient number, since it is larger than the sum of its proper divisors (394107286).

618621674 is a wasteful number, since it uses less digits than its factorization.

618621674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12205.

The product of its digits is 96768, while the sum is 41.

The square root of 618621674 is about 24872.1063442564. The cubic root of 618621674 is about 852.0695471379.

It can be divided in two parts, 61862 and 1674, that added together give a palindrome (63536).

The spelling of 618621674 in words is "six hundred eighteen million, six hundred twenty-one thousand, six hundred seventy-four".