189734519901 has 8 divisors (see below), whose sum is σ = 253392052960. Its totient is φ = 126283333392.

The previous prime is 189734519899. The next prime is 189734519927. The reversal of 189734519901 is 109915437981.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189734519901 - 2¹ = 189734519899 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 (189734519941) 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 7 ways as a sum of consecutive naturals, for example, 51584491 + ... + 51588168.

It is an arithmetic number, because the mean of its divisors is an integer number (31674006620).

Almost surely, 2^189734519901 is an apocalyptic number.

It is an amenable number.

189734519901 is a deficient number, since it is larger than the sum of its proper divisors (63657533059).

189734519901 is a wasteful number, since it uses less digits than its factorization.

189734519901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103173275.

The product of its (nonzero) digits is 2449440, while the sum is 57.

The spelling of 189734519901 in words is "one hundred eighty-nine billion, seven hundred thirty-four million, five hundred nineteen thousand, nine hundred one".