126252508653278 has 16 divisors (see below), whose sum is σ = 216584329584480. Its totient is φ = 54070353592416.

The previous prime is 126252508653199. The next prime is 126252508653289. The reversal of 126252508653278 is 872356805252621.

It is a self number, because there is not a number n which added to its sum of digits gives 126252508653278.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3155346101 + ... + 3155386112.

It is an arithmetic number, because the mean of its divisors is an integer number (13536520599030).

Almost surely, 2^{126252508653278} is an apocalyptic number.

126252508653278 is a deficient number, since it is larger than the sum of its proper divisors (90331820931202).

126252508653278 is a wasteful number, since it uses less digits than its factorization.

126252508653278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310733651.

The product of its (nonzero) digits is 96768000, while the sum is 62.

The spelling of 126252508653278 in words is "one hundred twenty-six trillion, two hundred fifty-two billion, five hundred eight million, six hundred fifty-three thousand, two hundred seventy-eight".