18989750048 has 12 divisors (see below), whose sum is σ = 37386070470. Its totient is φ = 9494875008.

The previous prime is 18989750041. The next prime is 18989750069. The reversal of 18989750048 is 84005798981.

It can be written as a sum of positive squares in only one way, i.e., 14383684624 + 4606065424 = 119932^2 + 67868^2 .

It is a super-2 number, since 2×18989750048² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18989750041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 296714813 + ... + 296714876.

Almost surely, 2^18989750048 is an apocalyptic number.

It is an amenable number.

18989750048 is a deficient number, since it is larger than the sum of its proper divisors (18396320422).

18989750048 is an equidigital number, since it uses as much as digits as its factorization.

18989750048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593429699 (or 593429691 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 59.

The spelling of 18989750048 in words is "eighteen billion, nine hundred eighty-nine million, seven hundred fifty thousand, forty-eight".