12878515254527 has 16 divisors (see below), whose sum is σ = 14745237651648. Its totient is φ = 11156449624320.

The previous prime is 12878515254511. The next prime is 12878515254581. The reversal of 12878515254527 is 72545251587821.

It is a happy number.

It is not a de Polignac number, because 12878515254527 - 2⁴ = 12878515254511 is a prime.

It is a super-2 number, since 2×12878515254527² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12878515254527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878515284527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406323374 + ... + 406355067.

It is an arithmetic number, because the mean of its divisors is an integer number (921577353228).

Almost surely, 2^{12878515254527} is an apocalyptic number.

12878515254527 is a deficient number, since it is larger than the sum of its proper divisors (1866722397121).

12878515254527 is a wasteful number, since it uses less digits than its factorization.

12878515254527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812678530.

The product of its digits is 62720000, while the sum is 62.

The spelling of 12878515254527 in words is "twelve trillion, eight hundred seventy-eight billion, five hundred fifteen million, two hundred fifty-four thousand, five hundred twenty-seven".