189822540943 has 12 divisors (see below), whose sum is σ = 220824544512. Its totient is φ = 162697248000.

The previous prime is 189822540937. The next prime is 189822541003. The reversal of 189822540943 is 349045228981.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-189822540943 is a prime.

It is a super-2 number, since 2×189822540943² (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 (189822540443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1095346 + ... + 1256752.

It is an arithmetic number, because the mean of its divisors is an integer number (18402045376).

Almost surely, 2^189822540943 is an apocalyptic number.

189822540943 is a deficient number, since it is larger than the sum of its proper divisors (31002003569).

189822540943 is a wasteful number, since it uses less digits than its factorization.

189822540943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185422 (or 185415 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 189822540943 in words is "one hundred eighty-nine billion, eight hundred twenty-two million, five hundred forty thousand, nine hundred forty-three".