190604842387 has 4 divisors (see below), whose sum is σ = 191572379856. Its totient is φ = 189637304920.

The previous prime is 190604842381. The next prime is 190604842397. The reversal of 190604842387 is 783248406091.

190604842387 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 an emirpimes, since its reverse is a distinct semiprime: 783248406091 = 91909 ⋅8521999.

It is a cyclic number.

It is not a de Polignac number, because 190604842387 - 2¹¹ = 190604840339 is a prime.

It is a super-2 number, since 2×190604842387² (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 (190604842381) 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, 483768439 + ... + 483768832.

It is an arithmetic number, because the mean of its divisors is an integer number (47893094964).

Almost surely, 2^190604842387 is an apocalyptic number.

190604842387 is a deficient number, since it is larger than the sum of its proper divisors (967537469).

190604842387 is an equidigital number, since it uses as much as digits as its factorization.

190604842387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967537468.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 190604842387 in words is "one hundred ninety billion, six hundred four million, eight hundred forty-two thousand, three hundred eighty-seven".