190308715682 has 18 divisors (see below), whose sum is σ = 286576967313. Its totient is φ = 94784501112.

The previous prime is 190308715673. The next prime is 190308715687. The reversal of 190308715682 is 286517803091.

It can be written as a sum of positive squares in 2 ways, for example, as 189946917241 + 361798441 = 435829^2 + 19021^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=308471.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190308715682.

It is not an unprimeable number, because it can be changed into a prime (190308715687) 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, 230118953 + ... + 230119779.

Almost surely, 2^190308715682 is an apocalyptic number.

190308715682 is a deficient number, since it is larger than the sum of its proper divisors (96268251631).

190308715682 is an frugal number, since it uses more digits than its factorization.

190308715682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 1202 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

Multiplying 190308715682 by its sum of digits (50), we get a square (9515435784100 = 3084710²).

The spelling of 190308715682 in words is "one hundred ninety billion, three hundred eight million, seven hundred fifteen thousand, six hundred eighty-two".