12440683488 has 48 divisors (see below), whose sum is σ = 32671686096. Its totient is φ = 4145003520.

The previous prime is 12440683483. The next prime is 12440683513. The reversal of 12440683488 is 88438604421.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×12440683488² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440683483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190570 + ... + 247382.

It is an arithmetic number, because the mean of its divisors is an integer number (680660127).

Almost surely, 2^12440683488 is an apocalyptic number.

It is an amenable number.

12440683488 is an abundant number, since it is smaller than the sum of its proper divisors (20231002608).

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

12440683488 is a wasteful number, since it uses less digits than its factorization.

12440683488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59107 (or 59099 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 48.

The spelling of 12440683488 in words is "twelve billion, four hundred forty million, six hundred eighty-three thousand, four hundred eighty-eight".