190983996361 has 4 divisors (see below), whose sum is σ = 191019975300. Its totient is φ = 190948017424.

The previous prime is 190983996331. The next prime is 190983996367. The reversal of 190983996361 is 163699389091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2145079225 + 188838917136 = 46315^2 + 434556^2 .

It is a cyclic number.

It is not a de Polignac number, because 190983996361 - 2²¹ = 190981899209 is a prime.

It is a super-2 number, since 2×190983996361² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190983996293 and 190983996302.

It is not an unprimeable number, because it can be changed into a prime (190983996367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17981506 + ... + 17992123.

It is an arithmetic number, because the mean of its divisors is an integer number (47754993825).

Almost surely, 2^190983996361 is an apocalyptic number.

It is an amenable number.

190983996361 is a deficient number, since it is larger than the sum of its proper divisors (35978939).

190983996361 is an equidigital number, since it uses as much as digits as its factorization.

190983996361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35978938.

The product of its (nonzero) digits is 17006112, while the sum is 64.

The spelling of 190983996361 in words is "one hundred ninety billion, nine hundred eighty-three million, nine hundred ninety-six thousand, three hundred sixty-one".