18077152832 has 14 divisors (see below), whose sum is σ = 35871850278. Its totient is φ = 9038576384.

The previous prime is 18077152763. The next prime is 18077152859. The reversal of 18077152832 is 23825177081.

It can be written as a sum of positive squares in only one way, i.e., 9718805056 + 8358347776 = 98584^2 + 91424^2 .

It is a super-2 number, since 2×18077152832² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 141227693 + ... + 141227820.

Almost surely, 2^18077152832 is an apocalyptic number.

It is an amenable number.

18077152832 is a deficient number, since it is larger than the sum of its proper divisors (17794697446).

18077152832 is an equidigital number, since it uses as much as digits as its factorization.

18077152832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282455525 (or 282455515 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 18077152832 in words is "eighteen billion, seventy-seven million, one hundred fifty-two thousand, eight hundred thirty-two".