18530740982 has 16 divisors (see below), whose sum is σ = 30208904880. Its totient is φ = 8474183712.

The previous prime is 18530740981. The next prime is 18530741023. The reversal of 18530740982 is 28904703581.

It is a happy number.

It is a super-2 number, since 2×18530740982² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18530740981) 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, 3266528 + ... + 3272195.

It is an arithmetic number, because the mean of its divisors is an integer number (1888056555).

Almost surely, 2^18530740982 is an apocalyptic number.

18530740982 is a deficient number, since it is larger than the sum of its proper divisors (11678163898).

18530740982 is a wasteful number, since it uses less digits than its factorization.

18530740982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538847.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 18530740982 in words is "eighteen billion, five hundred thirty million, seven hundred forty thousand, nine hundred eighty-two".