818395705400 has 96 divisors (see below), whose sum is σ = 2341870839840. Its totient is φ = 259008744960.

The previous prime is 818395705397. The next prime is 818395705403. The reversal of 818395705400 is 4507593818.

818395705400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (818395705397) and next prime (818395705403).

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818395705403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22465199 + ... + 22501598.

It is an arithmetic number, because the mean of its divisors is an integer number (24394487915).

Almost surely, 2^818395705400 is an apocalyptic number.

It is an amenable number.

818395705400 is an abundant number, since it is smaller than the sum of its proper divisors (1523475134440).

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

818395705400 is a wasteful number, since it uses less digits than its factorization.

818395705400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44966833 (or 44966824 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 818395705400 in words is "eight hundred eighteen billion, three hundred ninety-five million, seven hundred five thousand, four hundred".