189659086848 has 840 divisors, whose sum is σ = 730815180480. Its totient is φ = 47563407360.

The previous prime is 189659086811. The next prime is 189659086901. The reversal of 189659086848 is 848680956981.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6539968498 + ... + 6539968526.

It is an arithmetic number, because the mean of its divisors is an integer number (870018072).

Almost surely, 2^189659086848 is an apocalyptic number.

189659086848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189659086848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365407590240).

189659086848 is an abundant number, since it is smaller than the sum of its proper divisors (541156093632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189659086848 is an frugal number, since it uses more digits than its factorization.

189659086848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 72.

The spelling of 189659086848 in words is "one hundred eighty-nine billion, six hundred fifty-nine million, eighty-six thousand, eight hundred forty-eight".