69680999520 has 768 divisors, whose sum is σ = 275513011200. Its totient is φ = 16303472640.

The previous prime is 69680999519. The next prime is 69680999527. The reversal of 69680999520 is 2599908696.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69680999527) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 183854691 + ... + 183855069.

It is an arithmetic number, because the mean of its divisors is an integer number (358740900).

Almost surely, 2^69680999520 is an apocalyptic number.

69680999520 is a gapful number since it is divisible by the number (60) 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 69680999520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137756505600).

69680999520 is an abundant number, since it is smaller than the sum of its proper divisors (205832011680).

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

69680999520 is a wasteful number, since it uses less digits than its factorization.

69680999520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 63.

The spelling of 69680999520 in words is "sixty-nine billion, six hundred eighty million, nine hundred ninety-nine thousand, five hundred twenty".