618472915065 has 24 divisors (see below), whose sum is σ = 1072039183488. Its totient is φ = 329846232480.

The previous prime is 618472915037. The next prime is 618472915117. The reversal of 618472915065 is 560519274816.

It is a happy number.

618472915065 is a `hidden beast` number, since 6 + 1 + 8 + 47 + 2 + 91 + 506 + 5 = 666.

It is not a de Polignac number, because 618472915065 - 2⁵ = 618472915033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3609280 + ... + 3776750.

It is an arithmetic number, because the mean of its divisors is an integer number (44668299312).

Almost surely, 2^618472915065 is an apocalyptic number.

It is an amenable number.

618472915065 is a deficient number, since it is larger than the sum of its proper divisors (453566268423).

618472915065 is a wasteful number, since it uses less digits than its factorization.

618472915065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249549 (or 249546 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 618472915065 in words is "six hundred eighteen billion, four hundred seventy-two million, nine hundred fifteen thousand, sixty-five".