20186939024 has 40 divisors (see below), whose sum is σ = 44757968640. Its totient is φ = 8640258048.

The previous prime is 20186939021. The next prime is 20186939033. The reversal of 20186939024 is 42093968102.

It is not an unprimeable number, because it can be changed into a prime (20186939021) by changing a digit.

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, 31064 + ... + 203319.

It is an arithmetic number, because the mean of its divisors is an integer number (1118949216).

Almost surely, 2^20186939024 is an apocalyptic number.

It is an amenable number.

20186939024 is an abundant number, since it is smaller than the sum of its proper divisors (24571029616).

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

20186939024 is a wasteful number, since it uses less digits than its factorization.

20186939024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235167 (or 235161 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 20186939024 in words is "twenty billion, one hundred eighty-six million, nine hundred thirty-nine thousand, twenty-four".