11689479580 has 24 divisors (see below), whose sum is σ = 24558821280. Its totient is φ = 4673712960.

The previous prime is 11689479577. The next prime is 11689479617. The reversal of 11689479580 is 8597498611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83416 + ... + 174175.

It is an arithmetic number, because the mean of its divisors is an integer number (1023284220).

Almost surely, 2^11689479580 is an apocalyptic number.

11689479580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11689479580 is an abundant number, since it is smaller than the sum of its proper divisors (12869341700).

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

11689479580 is a wasteful number, since it uses less digits than its factorization.

11689479580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259869 (or 259867 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 11689479580 in words is "eleven billion, six hundred eighty-nine million, four hundred seventy-nine thousand, five hundred eighty".