720038098818 has 64 divisors (see below), whose sum is σ = 1638002736000. Its totient is φ = 234367922880.

The previous prime is 720038098781. The next prime is 720038098909. The reversal of 720038098818 is 818890830027.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7708 + ... + 1200056.

It is an arithmetic number, because the mean of its divisors is an integer number (25593792750).

Almost surely, 2^720038098818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720038098818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819001368000).

720038098818 is an abundant number, since it is smaller than the sum of its proper divisors (917964637182).

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

720038098818 is a wasteful number, since it uses less digits than its factorization.

720038098818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192624 (or 1192618 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 720038098818 in words is "seven hundred twenty billion, thirty-eight million, ninety-eight thousand, eight hundred eighteen".