818748862464 has 208 divisors, whose sum is σ = 2489293652832. Its totient is φ = 237102956544.

The previous prime is 818748862411. The next prime is 818748862483. The reversal of 818748862464 is 464268847818.

It is a tau number, because it is divible by the number of its divisors (208).

It is a junction number, because it is equal to n+sod(n) for n = 818748862395 and 818748862404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2564902 + ... + 2866394.

Almost surely, 2^818748862464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818748862464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244646826416).

818748862464 is an abundant number, since it is smaller than the sum of its proper divisors (1670544790368).

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

818748862464 is a wasteful number, since it uses less digits than its factorization.

818748862464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301550 (or 301528 counting only the distinct ones).

The product of its digits is 132120576, while the sum is 66.

The spelling of 818748862464 in words is "eight hundred eighteen billion, seven hundred forty-eight million, eight hundred sixty-two thousand, four hundred sixty-four".