12402653705 has 16 divisors (see below), whose sum is σ = 16970872464. Its totient is φ = 8620124160.

The previous prime is 12402653647. The next prime is 12402653717. The reversal of 12402653705 is 50735620421.

It can be written as a sum of positive squares in 8 ways, for example, as 249134656 + 12153519049 = 15784^2 + 110243^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12402653705 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5610956 + ... + 5613165.

It is an arithmetic number, because the mean of its divisors is an integer number (1060679529).

Almost surely, 2^12402653705 is an apocalyptic number.

It is an amenable number.

12402653705 is a deficient number, since it is larger than the sum of its proper divisors (4568218759).

12402653705 is a wasteful number, since it uses less digits than its factorization.

12402653705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11224156.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 12402653705 in words is "twelve billion, four hundred two million, six hundred fifty-three thousand, seven hundred five".