18404941152 has 96 divisors (see below), whose sum is σ = 52222302720. Its totient is φ = 5642058240.

The previous prime is 18404941151. The next prime is 18404941153. The reversal of 18404941152 is 25114940481.

It is an interprime number because it is at equal distance from previous prime (18404941151) and next prime (18404941153).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 18404941152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18404941151) 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, 310999 + ... + 365417.

It is an arithmetic number, because the mean of its divisors is an integer number (543982320).

Almost surely, 2^18404941152 is an apocalyptic number.

18404941152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18404941152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26111151360).

18404941152 is an abundant number, since it is smaller than the sum of its proper divisors (33817361568).

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

18404941152 is a wasteful number, since it uses less digits than its factorization.

18404941152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54716 (or 54708 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 18404941152 in words is "eighteen billion, four hundred four million, nine hundred forty-one thousand, one hundred fifty-two".