186125145420 has 48 divisors (see below), whose sum is σ = 521170191360. Its totient is φ = 49631487936.

The previous prime is 186125145403. The next prime is 186125145431. The reversal of 186125145420 is 24541521681.

It is a happy number.

It is a super-2 number, since 2×186125145420² (a number of 23 digits) contains 22 as substring.

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, 2347749 + ... + 2425731.

It is an arithmetic number, because the mean of its divisors is an integer number (10857712320).

Almost surely, 2^186125145420 is an apocalyptic number.

186125145420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

186125145420 is an abundant number, since it is smaller than the sum of its proper divisors (335045045940).

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

186125145420 is a wasteful number, since it uses less digits than its factorization.

186125145420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117774 (or 117772 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 186125145420 in words is "one hundred eighty-six billion, one hundred twenty-five million, one hundred forty-five thousand, four hundred twenty".