69928189680 has 80 divisors (see below), whose sum is σ = 219830644224. Its totient is φ = 18384871680.

The previous prime is 69928189649. The next prime is 69928189687. The reversal of 69928189680 is 8698182996.

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 (69928189687) 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, 2034844 + ... + 2068923.

Almost surely, 2^69928189680 is an apocalyptic number.

69928189680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69928189680 is an abundant number, since it is smaller than the sum of its proper divisors (149902454544).

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

69928189680 is a wasteful number, since it uses less digits than its factorization.

69928189680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103854 (or 4103848 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 66.

The spelling of 69928189680 in words is "sixty-nine billion, nine hundred twenty-eight million, one hundred eighty-nine thousand, six hundred eighty".