689191099272 has 192 divisors, whose sum is σ = 2028529863360. Its totient is φ = 210127680000.

The previous prime is 689191099217. The next prime is 689191099297. The reversal of 689191099272 is 272990191986.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46274947 + ... + 46289837.

It is an arithmetic number, because the mean of its divisors is an integer number (10565259705).

Almost surely, 2^689191099272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689191099272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014264931680).

689191099272 is an abundant number, since it is smaller than the sum of its proper divisors (1339338764088).

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

689191099272 is a wasteful number, since it uses less digits than its factorization.

689191099272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15364 (or 15357 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 63.

The spelling of 689191099272 in words is "six hundred eighty-nine billion, one hundred ninety-one million, ninety-nine thousand, two hundred seventy-two".