126503865982 has 16 divisors (see below), whose sum is σ = 204391998720. Its totient is φ = 58375085472.

The previous prime is 126503865959. The next prime is 126503866061. The reversal of 126503865982 is 289568305621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333918 + ... + 603745.

It is an arithmetic number, because the mean of its divisors is an integer number (12774499920).

Almost surely, 2^126503865982 is an apocalyptic number.

126503865982 is a deficient number, since it is larger than the sum of its proper divisors (77888132738).

126503865982 is a wasteful number, since it uses less digits than its factorization.

126503865982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942867.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 126503865982 in words is "one hundred twenty-six billion, five hundred three million, eight hundred sixty-five thousand, nine hundred eighty-two".