18982501730 has 16 divisors (see below), whose sum is σ = 34813192824. Its totient is φ = 7449736320.

The previous prime is 18982501691. The next prime is 18982501739. The reversal of 18982501730 is 3710528981.

It is a Cunningham number, because it is equal to 137777²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 18982501729 + 1 = 137777^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (18982501739) 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, 17907491 + ... + 17908550.

Almost surely, 2^18982501730 is an apocalyptic number.

18982501730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18982501730 is a deficient number, since it is larger than the sum of its proper divisors (15830691094).

18982501730 is a wasteful number, since it uses less digits than its factorization.

18982501730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35816101.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 18982501730 in words is "eighteen billion, nine hundred eighty-two million, five hundred one thousand, seven hundred thirty".