126643063264 has 12 divisors (see below), whose sum is σ = 249328530864. Its totient is φ = 63321531616.

The previous prime is 126643063219. The next prime is 126643063273. The reversal of 126643063264 is 462360346621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 126643063264.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1978797832 + ... + 1978797895.

It is an arithmetic number, because the mean of its divisors is an integer number (20777377572).

Almost surely, 2^126643063264 is an apocalyptic number.

It is an amenable number.

126643063264 is a deficient number, since it is larger than the sum of its proper divisors (122685467600).

126643063264 is an equidigital number, since it uses as much as digits as its factorization.

126643063264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957595737 (or 3957595729 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 43.

The spelling of 126643063264 in words is "one hundred twenty-six billion, six hundred forty-three million, sixty-three thousand, two hundred sixty-four".