126263876501 has 16 divisors (see below), whose sum is σ = 152817477120. Its totient is φ = 101841550080.

The previous prime is 126263876407. The next prime is 126263876527. The reversal of 126263876501 is 105678362621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126263876501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126263876551) 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, 586715 + ... + 772503.

It is an arithmetic number, because the mean of its divisors is an integer number (9551092320).

Almost surely, 2^126263876501 is an apocalyptic number.

It is an amenable number.

126263876501 is a deficient number, since it is larger than the sum of its proper divisors (26553600619).

126263876501 is a wasteful number, since it uses less digits than its factorization.

126263876501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191524.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 126263876501 in words is "one hundred twenty-six billion, two hundred sixty-three million, eight hundred seventy-six thousand, five hundred one".