126263876499 has 12 divisors (see below), whose sum is σ = 182420378296. Its totient is φ = 84157814592.

The previous prime is 126263876407. The next prime is 126263876527. The reversal of 126263876499 is 994678362621.

126263876499 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 63 + 87 + 6 + 499 = 666.

It is not a de Polignac number, because 126263876499 - 2⁷ = 126263876371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126263872499) 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 11 ways as a sum of consecutive naturals, for example, 1464349 + ... + 1548174.

Almost surely, 2^126263876499 is an apocalyptic number.

126263876499 is a deficient number, since it is larger than the sum of its proper divisors (56156501797).

126263876499 is a wasteful number, since it uses less digits than its factorization.

126263876499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017186 (or 3017183 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 126263876499 in words is "one hundred twenty-six billion, two hundred sixty-three million, eight hundred seventy-six thousand, four hundred ninety-nine".