18800322148 has 6 divisors (see below), whose sum is σ = 32900563766. Its totient is φ = 9400161072.

The previous prime is 18800322143. The next prime is 18800322157. The reversal of 18800322148 is 84122300881.

It can be written as a sum of positive squares in only one way, i.e., 18795861604 + 4460544 = 137098^2 + 2112^2 .

It is a super-2 number, since 2×18800322148² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18800322143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2350040265 + ... + 2350040272.

Almost surely, 2^18800322148 is an apocalyptic number.

It is an amenable number.

18800322148 is a deficient number, since it is larger than the sum of its proper divisors (14100241618).

18800322148 is a wasteful number, since it uses less digits than its factorization.

18800322148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700080541 (or 4700080539 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The spelling of 18800322148 in words is "eighteen billion, eight hundred million, three hundred twenty-two thousand, one hundred forty-eight".