69889621708680 has 64 divisors (see below), whose sum is σ = 209685606992640. Its totient is φ = 18635744289792.

The previous prime is 69889621708663. The next prime is 69889621708763. The reversal of 69889621708680 is 8680712698896.

It is a junction number, because it is equal to n+sod(n) for n = 69889621708596 and 69889621708605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21743089 + ... + 24749568.

It is an arithmetic number, because the mean of its divisors is an integer number (3276337609260).

Almost surely, 2^{69889621708680} is an apocalyptic number.

69889621708680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69889621708680 is an abundant number, since it is smaller than the sum of its proper divisors (139795985283960).

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

69889621708680 is a wasteful number, since it uses less digits than its factorization.

69889621708680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46505198 (or 46505194 counting only the distinct ones).

The product of its (nonzero) digits is 1003290624, while the sum is 78.

The spelling of 69889621708680 in words is "sixty-nine trillion, eight hundred eighty-nine billion, six hundred twenty-one million, seven hundred eight thousand, six hundred eighty".