69889341520 has 80 divisors (see below), whose sum is σ = 164821147200. Its totient is φ = 27555628032.

The previous prime is 69889341493. The next prime is 69889341527. The reversal of 69889341520 is 2514398896.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69889341527) 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, 13703931 + ... + 13709029.

It is an arithmetic number, because the mean of its divisors is an integer number (2060264340).

Almost surely, 2^69889341520 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 69889341520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82410573600).

69889341520 is an abundant number, since it is smaller than the sum of its proper divisors (94931805680).

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

69889341520 is a wasteful number, since it uses less digits than its factorization.

69889341520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7532 (or 7526 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 69889341520 in words is "sixty-nine billion, eight hundred eighty-nine million, three hundred forty-one thousand, five hundred twenty".