189414650881 has 4 divisors (see below), whose sum is σ = 189598371264. Its totient is φ = 189230930500.

The previous prime is 189414650857. The next prime is 189414650891. The reversal of 189414650881 is 188056414981.

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.

It is a cyclic number.

It is not a de Polignac number, because 189414650881 - 2³¹ = 187267167233 is a prime.

It is a super-2 number, since 2×189414650881² (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 (189414650851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91858645 + ... + 91860706.

It is an arithmetic number, because the mean of its divisors is an integer number (47399592816).

Almost surely, 2^189414650881 is an apocalyptic number.

It is an amenable number.

189414650881 is a deficient number, since it is larger than the sum of its proper divisors (183720383).

189414650881 is a wasteful number, since it uses less digits than its factorization.

189414650881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183720382.

The product of its (nonzero) digits is 2211840, while the sum is 55.

The spelling of 189414650881 in words is "one hundred eighty-nine billion, four hundred fourteen million, six hundred fifty thousand, eight hundred eighty-one".