189677624869 has 4 divisors (see below), whose sum is σ = 189796100940. Its totient is φ = 189559148800.

The previous prime is 189677624849. The next prime is 189677624923. The reversal of 189677624869 is 968426776981.

189677624869 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.

It can be written as a sum of positive squares in 2 ways, for example, as 90924562369 + 98753062500 = 301537^2 + 314250^2 .

It is a cyclic number.

It is not a de Polignac number, because 189677624869 - 2²³ = 189669236261 is a prime.

It is a super-2 number, since 2×189677624869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189677624839) 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, 59235634 + ... + 59238835.

It is an arithmetic number, because the mean of its divisors is an integer number (47449025235).

Almost surely, 2^189677624869 is an apocalyptic number.

It is an amenable number.

189677624869 is a deficient number, since it is larger than the sum of its proper divisors (118476071).

189677624869 is a wasteful number, since it uses less digits than its factorization.

189677624869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118476070.

The product of its digits is 438939648, while the sum is 73.

The spelling of 189677624869 in words is "one hundred eighty-nine billion, six hundred seventy-seven million, six hundred twenty-four thousand, eight hundred sixty-nine".