126858612655 has 16 divisors (see below), whose sum is σ = 152412964704. Its totient is φ = 101365217280.

The previous prime is 126858612649. The next prime is 126858612659. The reversal of 126858612655 is 556216858621.

It is not a de Polignac number, because 126858612655 - 2²³ = 126850224047 is a prime.

It is a super-2 number, since 2×126858612655² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126858612596 and 126858612605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126858612659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27238087 + ... + 27242743.

It is an arithmetic number, because the mean of its divisors is an integer number (9525810294).

Almost surely, 2^126858612655 is an apocalyptic number.

126858612655 is a deficient number, since it is larger than the sum of its proper divisors (25554352049).

126858612655 is a wasteful number, since it uses less digits than its factorization.

126858612655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026.

The product of its digits is 6912000, while the sum is 55.

The spelling of 126858612655 in words is "one hundred twenty-six billion, eight hundred fifty-eight million, six hundred twelve thousand, six hundred fifty-five".