11479308215880 has 128 divisors (see below), whose sum is σ = 34660948308480. Its totient is φ = 3041328675840.

The previous prime is 11479308215863. The next prime is 11479308215953. The reversal of 11479308215880 is 8851280397411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11479308215880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216087082 + ... + 216140198.

It is an arithmetic number, because the mean of its divisors is an integer number (270788658660).

Almost surely, 2^{11479308215880} is an apocalyptic number.

11479308215880 is a gapful number since it is divisible by the number (10) 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 11479308215880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17330474154240).

11479308215880 is an abundant number, since it is smaller than the sum of its proper divisors (23181640092600).

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

11479308215880 is a wasteful number, since it uses less digits than its factorization.

11479308215880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64759 (or 64755 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 57.

The spelling of 11479308215880 in words is "eleven trillion, four hundred seventy-nine billion, three hundred eight million, two hundred fifteen thousand, eight hundred eighty".