190613121677 has 4 divisors (see below), whose sum is σ = 207941587296. Its totient is φ = 173284656060.

The previous prime is 190613121649. The next prime is 190613121703. The reversal of 190613121677 is 776121316091.

190613121677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 776121316091 = 11 ⋅70556483281.

It is a cyclic number.

It is not a de Polignac number, because 190613121677 - 2⁶ = 190613121613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190613121077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8664232793 + ... + 8664232814.

It is an arithmetic number, because the mean of its divisors is an integer number (51985396824).

Almost surely, 2^190613121677 is an apocalyptic number.

It is an amenable number.

190613121677 is a deficient number, since it is larger than the sum of its proper divisors (17328465619).

190613121677 is a wasteful number, since it uses less digits than its factorization.

190613121677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17328465618.

The product of its (nonzero) digits is 95256, while the sum is 44.

The spelling of 190613121677 in words is "one hundred ninety billion, six hundred thirteen million, one hundred twenty-one thousand, six hundred seventy-seven".