190053790081 has 4 divisors (see below), whose sum is σ = 190377562032. Its totient is φ = 189730018132.

The previous prime is 190053790063. The next prime is 190053790097. The reversal of 190053790081 is 180097350091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180097350091 = 5077 ⋅35473183.

It is a cyclic number.

It is not a de Polignac number, because 190053790081 - 2¹⁹ = 190053265793 is a prime.

It is a super-2 number, since 2×190053790081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190053793081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161885095 + ... + 161886268.

It is an arithmetic number, because the mean of its divisors is an integer number (47594390508).

Almost surely, 2^190053790081 is an apocalyptic number.

It is an amenable number.

190053790081 is a deficient number, since it is larger than the sum of its proper divisors (323771951).

190053790081 is an equidigital number, since it uses as much as digits as its factorization.

190053790081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323771950.

The product of its (nonzero) digits is 68040, while the sum is 43.

The spelling of 190053790081 in words is "one hundred ninety billion, fifty-three million, seven hundred ninety thousand, eighty-one".