618748871 has 32 divisors (see below), whose sum is σ = 714147840. Its totient is φ = 532022400.

The previous prime is 618748841. The next prime is 618748931. The reversal of 618748871 is 178847816.

It is not a de Polignac number, because 618748871 - 2²⁶ = 551640007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618748811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1259936 + ... + 1260426.

It is an arithmetic number, because the mean of its divisors is an integer number (22317120).

Almost surely, 2^618748871 is an apocalyptic number.

618748871 is a deficient number, since it is larger than the sum of its proper divisors (95398969).

618748871 is a wasteful number, since it uses less digits than its factorization.

618748871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647.

The product of its digits is 602112, while the sum is 50.

The square root of 618748871 is about 24874.6632339013. The cubic root of 618748871 is about 852.1279421513.

The spelling of 618748871 in words is "six hundred eighteen million, seven hundred forty-eight thousand, eight hundred seventy-one".