186428651136 has 512 divisors, whose sum is σ = 635123220480. Its totient is φ = 47129886720.

The previous prime is 186428651119. The next prime is 186428651231. The reversal of 186428651136 is 631156824681.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 122408071 + ... + 122409593.

It is an arithmetic number, because the mean of its divisors is an integer number (1240475040).

Almost surely, 2^186428651136 is an apocalyptic number.

186428651136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 186428651136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317561610240).

186428651136 is an abundant number, since it is smaller than the sum of its proper divisors (448694569344).

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

186428651136 is a wasteful number, since it uses less digits than its factorization.

186428651136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704 (or 1692 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The spelling of 186428651136 in words is "one hundred eighty-six billion, four hundred twenty-eight million, six hundred fifty-one thousand, one hundred thirty-six".