18603961498 has 8 divisors (see below), whose sum is σ = 28093230900. Its totient is φ = 9239551200.

The previous prime is 18603961483. The next prime is 18603961499. The reversal of 18603961498 is 89416930681.

It can be written as a sum of positive squares in 2 ways, for example, as 18089443009 + 514518489 = 134497^2 + 22683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18603961498² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18603961499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31214403 + ... + 31214998.

Almost surely, 2^18603961498 is an apocalyptic number.

18603961498 is a deficient number, since it is larger than the sum of its proper divisors (9489269402).

18603961498 is a wasteful number, since it uses less digits than its factorization.

18603961498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62429552.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 18603961498 in words is "eighteen billion, six hundred three million, nine hundred sixty-one thousand, four hundred ninety-eight".