618713841 has 8 divisors (see below), whose sum is σ = 851563264. Its totient is φ = 399170160.

The previous prime is 618713833. The next prime is 618713857. The reversal of 618713841 is 148317816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 618713841 - 2³ = 618713833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 618713841.

It is not an unprimeable number, because it can be changed into a prime (618713141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3326326 + ... + 3326511.

It is an arithmetic number, because the mean of its divisors is an integer number (106445408).

Almost surely, 2^618713841 is an apocalyptic number.

It is an amenable number.

618713841 is a deficient number, since it is larger than the sum of its proper divisors (232849423).

618713841 is a wasteful number, since it uses less digits than its factorization.

618713841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652871.

The product of its digits is 32256, while the sum is 39.

The square root of 618713841 is about 24873.9590937993. The cubic root of 618713841 is about 852.1118609879. Note that the first 3 decimals are identical.

The spelling of 618713841 in words is "six hundred eighteen million, seven hundred thirteen thousand, eight hundred forty-one".