12758127498015 has 128 divisors (see below), whose sum is σ = 21929076449280. Its totient is φ = 6325179494400.

The previous prime is 12758127497957. The next prime is 12758127498029. The reversal of 12758127498015 is 51089472185721.

It is not a de Polignac number, because 12758127498015 - 2⁹ = 12758127497503 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12758127498015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 157034694 + ... + 157115916.

It is an arithmetic number, because the mean of its divisors is an integer number (171320909760).

Almost surely, 2^{12758127498015} is an apocalyptic number.

12758127498015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12758127498015 is a deficient number, since it is larger than the sum of its proper divisors (9170948951265).

12758127498015 is a wasteful number, since it uses less digits than its factorization.

12758127498015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81465.

The product of its (nonzero) digits is 11289600, while the sum is 60.

The spelling of 12758127498015 in words is "twelve trillion, seven hundred fifty-eight billion, one hundred twenty-seven million, four hundred ninety-eight thousand, fifteen".