12765518460 has 48 divisors (see below), whose sum is σ = 39714948000. Its totient is φ = 3404138112.

The previous prime is 12765518453. The next prime is 12765518473. The reversal of 12765518460 is 6481556721.

12765518460 is a `hidden beast` number, since 1 + 2 + 76 + 5 + 518 + 4 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 11819385 + ... + 11820464.

It is an arithmetic number, because the mean of its divisors is an integer number (827394750).

Almost surely, 2^12765518460 is an apocalyptic number.

12765518460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12765518460 is an abundant number, since it is smaller than the sum of its proper divisors (26949429540).

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

12765518460 is a wasteful number, since it uses less digits than its factorization.

12765518460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23639867 (or 23639859 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 12765518460 in words is "twelve billion, seven hundred sixty-five million, five hundred eighteen thousand, four hundred sixty".