189604500123445 has 16 divisors (see below), whose sum is σ = 253981842028992. Its totient is φ = 134687340466560.

The previous prime is 189604500123443. The next prime is 189604500123469. The reversal of 189604500123445 is 544321005406981.

It is not a de Polignac number, because 189604500123445 - 2¹ = 189604500123443 is a prime.

It is a super-2 number, since 2×189604500123445² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189604500123392 and 189604500123401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189604500123443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40085515632 + ... + 40085520361.

It is an arithmetic number, because the mean of its divisors is an integer number (15873865126812).

Almost surely, 2^{189604500123445} is an apocalyptic number.

It is an amenable number.

189604500123445 is a deficient number, since it is larger than the sum of its proper divisors (64377341905547).

189604500123445 is a wasteful number, since it uses less digits than its factorization.

189604500123445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80171036052.

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 189604500123445 in words is "one hundred eighty-nine trillion, six hundred four billion, five hundred million, one hundred twenty-three thousand, four hundred forty-five".