11648439460 has 96 divisors (see below), whose sum is σ = 28222209792. Its totient is φ = 3955944960.

The previous prime is 11648439437. The next prime is 11648439469. The reversal of 11648439460 is 6493484611.

It is a super-2 number, since 2×11648439460² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11648439460.

It is not an unprimeable number, because it can be changed into a prime (11648439469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8016094 + ... + 8017546.

It is an arithmetic number, because the mean of its divisors is an integer number (293981352).

Almost surely, 2^11648439460 is an apocalyptic number.

11648439460 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 11648439460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14111104896).

11648439460 is an abundant number, since it is smaller than the sum of its proper divisors (16573770332).

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

11648439460 is a wasteful number, since it uses less digits than its factorization.

11648439460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1971 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 11648439460 in words is "eleven billion, six hundred forty-eight million, four hundred thirty-nine thousand, four hundred sixty".