18803539848 has 48 divisors (see below), whose sum is σ = 49613240880. Its totient is φ = 5937957216.

The previous prime is 18803539847. The next prime is 18803539879. The reversal of 18803539848 is 84893530881.

It is a happy number.

It is a super-2 number, since 2×18803539848² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (18803539841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1076490 + ... + 1093817.

It is an arithmetic number, because the mean of its divisors is an integer number (1033609185).

Almost surely, 2^18803539848 is an apocalyptic number.

It is an amenable number.

18803539848 is an abundant number, since it is smaller than the sum of its proper divisors (30809701032).

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

18803539848 is a wasteful number, since it uses less digits than its factorization.

18803539848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170354 (or 2170331 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 18803539848 in words is "eighteen billion, eight hundred three million, five hundred thirty-nine thousand, eight hundred forty-eight".