12549803518758 has 16 divisors (see below), whose sum is σ = 27381389495616. Its totient is φ = 3802970763240.

The previous prime is 12549803518643. The next prime is 12549803518781. The reversal of 12549803518758 is 85781530894521.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 190148538163 = 12549803518758 / (1 + 2 + 5 + 4 + 9 + 8 + 0 + 3 + 5 + 1 + 8 + 7 + 5 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95074269016 + ... + 95074269147.

It is an arithmetic number, because the mean of its divisors is an integer number (1711336843476).

Almost surely, 2^{12549803518758} is an apocalyptic number.

12549803518758 is an abundant number, since it is smaller than the sum of its proper divisors (14831585976858).

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

12549803518758 is a wasteful number, since it uses less digits than its factorization.

12549803518758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190148538179.

The product of its (nonzero) digits is 96768000, while the sum is 66.

The spelling of 12549803518758 in words is "twelve trillion, five hundred forty-nine billion, eight hundred three million, five hundred eighteen thousand, seven hundred fifty-eight".