12765025105 has 16 divisors (see below), whose sum is σ = 17518164480. Its totient is φ = 8747237952.

The previous prime is 12765025081. The next prime is 12765025159. The reversal of 12765025105 is 50152056721.

It is a cyclic number.

It is not a de Polignac number, because 12765025105 - 2⁷ = 12765024977 is a prime.

It is a super-2 number, since 2×12765025105² (a number of 21 digits) contains 22 as substring.

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, 70590 + ... + 174679.

It is an arithmetic number, because the mean of its divisors is an integer number (1094885280).

Almost surely, 2^12765025105 is an apocalyptic number.

It is an amenable number.

12765025105 is a deficient number, since it is larger than the sum of its proper divisors (4753139375).

12765025105 is a wasteful number, since it uses less digits than its factorization.

12765025105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246768.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 12765025105 in words is "twelve billion, seven hundred sixty-five million, twenty-five thousand, one hundred five".