618797043816 has 64 divisors (see below), whose sum is σ = 1861043750400. Its totient is φ = 167493935808.

The previous prime is 618797043793. The next prime is 618797043817. The reversal of 618797043816 is 618340797816.

It is a self number, because there is not a number n which added to its sum of digits gives 618797043816.

It is not an unprimeable number, because it can be changed into a prime (618797043817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96926170 + ... + 96932553.

It is an arithmetic number, because the mean of its divisors is an integer number (29078808600).

Almost surely, 2^618797043816 is an apocalyptic number.

It is an amenable number.

618797043816 is an abundant number, since it is smaller than the sum of its proper divisors (1242246706584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618797043816 is a wasteful number, since it uses less digits than its factorization.

618797043816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193858758 (or 193858754 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 618797043816 in words is "six hundred eighteen billion, seven hundred ninety-seven million, forty-three thousand, eight hundred sixteen".