186424191420 has 48 divisors (see below), whose sum is σ = 536095519008. Its totient is φ = 48369519360.

The previous prime is 186424191409. The next prime is 186424191449. The reversal of 186424191420 is 24191424681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41985211 + ... + 41989650.

It is an arithmetic number, because the mean of its divisors is an integer number (11168656646).

Almost surely, 2^186424191420 is an apocalyptic number.

186424191420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

186424191420 is an abundant number, since it is smaller than the sum of its proper divisors (349671327588).

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

186424191420 is a wasteful number, since it uses less digits than its factorization.

186424191420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83974910 (or 83974908 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 186424191420 in words is "one hundred eighty-six billion, four hundred twenty-four million, one hundred ninety-one thousand, four hundred twenty".