18783040484 has 24 divisors (see below), whose sum is σ = 35414549688. Its totient is φ = 8665240320.

The previous prime is 18783040483. The next prime is 18783040513. The reversal of 18783040484 is 48404038781.

It can be written as a sum of positive squares in 4 ways, for example, as 3614654884 + 15168385600 = 60122^2 + 123160^2 .

It is not an unprimeable number, because it can be changed into a prime (18783040481) 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, 39434 + ... + 197790.

It is an arithmetic number, because the mean of its divisors is an integer number (1475606237).

Almost surely, 2^18783040484 is an apocalyptic number.

It is an amenable number.

18783040484 is a deficient number, since it is larger than the sum of its proper divisors (16631509204).

18783040484 is a wasteful number, since it uses less digits than its factorization.

18783040484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160655 (or 160653 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 47.

The spelling of 18783040484 in words is "eighteen billion, seven hundred eighty-three million, forty thousand, four hundred eighty-four".