12765061542 has 32 divisors (see below), whose sum is σ = 25667576064. Its totient is φ = 4232138400.

The previous prime is 12765061537. The next prime is 12765061579. The reversal of 12765061542 is 24516056721.

It is a self number, because there is not a number n which added to its sum of digits gives 12765061542.

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, 3316263 + ... + 3320109.

It is an arithmetic number, because the mean of its divisors is an integer number (802111752).

Almost surely, 2^12765061542 is an apocalyptic number.

12765061542 is an abundant number, since it is smaller than the sum of its proper divisors (12902514522).

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

12765061542 is a wasteful number, since it uses less digits than its factorization.

12765061542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 12765061542 in words is "twelve billion, seven hundred sixty-five million, sixty-one thousand, five hundred forty-two".