18088742548 has 6 divisors (see below), whose sum is σ = 31655299466. Its totient is φ = 9044371272.

The previous prime is 18088742519. The next prime is 18088742557. The reversal of 18088742548 is 84524788081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12190809744 + 5897932804 = 110412^2 + 76798^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261092815 + ... + 2261092822.

Almost surely, 2^18088742548 is an apocalyptic number.

It is an amenable number.

18088742548 is a deficient number, since it is larger than the sum of its proper divisors (13566556918).

18088742548 is a wasteful number, since it uses less digits than its factorization.

18088742548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522185641 (or 4522185639 counting only the distinct ones).

The product of its (nonzero) digits is 4587520, while the sum is 55.

The spelling of 18088742548 in words is "eighteen billion, eighty-eight million, seven hundred forty-two thousand, five hundred forty-eight".