20186383628 has 24 divisors (see below), whose sum is σ = 36121075200. Its totient is φ = 9866591888.

The previous prime is 20186383537. The next prime is 20186383631. The reversal of 20186383628 is 82638368102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93743 + ... + 221721.

It is an arithmetic number, because the mean of its divisors is an integer number (1505044800).

Almost surely, 2^20186383628 is an apocalyptic number.

It is an amenable number.

20186383628 is a deficient number, since it is larger than the sum of its proper divisors (15934691572).

20186383628 is a wasteful number, since it uses less digits than its factorization.

20186383628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128869 (or 128867 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 20186383628 in words is "twenty billion, one hundred eighty-six million, three hundred eighty-three thousand, six hundred twenty-eight".