18916070500 has 24 divisors (see below), whose sum is σ = 41312699064. Its totient is φ = 7566428000.

The previous prime is 18916070491. The next prime is 18916070519. The reversal of 18916070500 is 507061981.

It can be written as a sum of positive squares in 4 ways, for example, as 1884254464 + 17031816036 = 43408^2 + 130506^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18916070500.

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 in 7 ways as a sum of consecutive naturals, for example, 18915571 + ... + 18916570.

It is an arithmetic number, because the mean of its divisors is an integer number (1721362461).

Almost surely, 2^18916070500 is an apocalyptic number.

18916070500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18916070500 is an abundant number, since it is smaller than the sum of its proper divisors (22396628564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18916070500 is a wasteful number, since it uses less digits than its factorization.

18916070500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37832160 (or 37832148 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 18916070500 in words is "eighteen billion, nine hundred sixteen million, seventy thousand, five hundred".