618893320913901 has 32 divisors (see below), whose sum is σ = 1052875399756800. Its totient is φ = 355345447411440.

The previous prime is 618893320913897. The next prime is 618893320913909. The reversal of 618893320913901 is 109319023398816.

618893320913901 is a `hidden beast` number, since 6 + 1 + 8 + 8 + 9 + 33 + 209 + 1 + 390 + 1 = 666.

It is not a de Polignac number, because 618893320913901 - 2² = 618893320913897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618893320913909) 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, 54837254761 + ... + 54837266046.

It is an arithmetic number, because the mean of its divisors is an integer number (32902356242400).

Almost surely, 2^{618893320913901} is an apocalyptic number.

It is an amenable number.

618893320913901 is a deficient number, since it is larger than the sum of its proper divisors (433982078842899).

618893320913901 is a wasteful number, since it uses less digits than its factorization.

618893320913901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109674520846 (or 109674520840 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 63.

The spelling of 618893320913901 in words is "six hundred eighteen trillion, eight hundred ninety-three billion, three hundred twenty million, nine hundred thirteen thousand, nine hundred one".