18490583652 has 24 divisors (see below), whose sum is σ = 43166399136. Its totient is φ = 6160427328.

The previous prime is 18490583633. The next prime is 18490583653. The reversal of 18490583652 is 25638509481.

It is a junction number, because it is equal to n+sod(n) for n = 18490583595 and 18490583604.

It is not an unprimeable number, because it can be changed into a prime (18490583653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362658 + ... + 410489.

It is an arithmetic number, because the mean of its divisors is an integer number (1798599964).

Almost surely, 2^18490583652 is an apocalyptic number.

18490583652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18490583652 is an abundant number, since it is smaller than the sum of its proper divisors (24675815484).

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

18490583652 is a wasteful number, since it uses less digits than its factorization.

18490583652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775147 (or 775145 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 18490583652 in words is "eighteen billion, four hundred ninety million, five hundred eighty-three thousand, six hundred fifty-two".