618898461 has 8 divisors (see below), whose sum is σ = 825988800. Its totient is φ = 412203552.

The previous prime is 618898439. The next prime is 618898487. The reversal of 618898461 is 164898816.

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

It is not a de Polignac number, because 618898461 - 2¹¹ = 618896413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618898261) 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, 95185 + ... + 101478.

It is an arithmetic number, because the mean of its divisors is an integer number (103248600).

Almost surely, 2^618898461 is an apocalyptic number.

It is an amenable number.

618898461 is a deficient number, since it is larger than the sum of its proper divisors (207090339).

618898461 is a wasteful number, since it uses less digits than its factorization.

618898461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197715.

The product of its digits is 663552, while the sum is 51.

The square root of 618898461 is about 24877.6699270651. The cubic root of 618898461 is about 852.1966073529.

The spelling of 618898461 in words is "six hundred eighteen million, eight hundred ninety-eight thousand, four hundred sixty-one".