12859753440 has 48 divisors (see below), whose sum is σ = 40508224848. Its totient is φ = 3429267456.

The previous prime is 12859753433. The next prime is 12859753441. The reversal of 12859753440 is 4435795821.

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 12859753440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12859753441) 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, 13395097 + ... + 13396056.

It is an arithmetic number, because the mean of its divisors is an integer number (843921351).

Almost surely, 2^12859753440 is an apocalyptic number.

12859753440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12859753440 is an abundant number, since it is smaller than the sum of its proper divisors (27648471408).

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

12859753440 is a wasteful number, since it uses less digits than its factorization.

12859753440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26791171 (or 26791163 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 12859753440 in words is "twelve billion, eight hundred fifty-nine million, seven hundred fifty-three thousand, four hundred forty".