190195215282 has 18 divisors (see below), whose sum is σ = 412093642077. Its totient is φ = 63397788336.

The previous prime is 190195215277. The next prime is 190195215283. The reversal of 190195215282 is 282512591091.

It is a happy number.

190195215282 is a `hidden beast` number, since 1 + 90 + 19 + 5 + 21 + 528 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 148880994201 + 41314221081 = 385851^2 + 203259^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=308379.

It is not an unprimeable number, because it can be changed into a prime (190195215283) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1798878 + ... + 1901670.

Almost surely, 2^190195215282 is an apocalyptic number.

190195215282 is an abundant number, since it is smaller than the sum of its proper divisors (221898426795).

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

190195215282 is an frugal number, since it uses more digits than its factorization.

190195215282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205594 (or 102798 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 190195215282 in words is "one hundred ninety billion, one hundred ninety-five million, two hundred fifteen thousand, two hundred eighty-two".