126263876500 has 48 divisors (see below), whose sum is σ = 276904804176. Its totient is φ = 50295936000.

The previous prime is 126263876407. The next prime is 126263876527. The reversal of 126263876500 is 5678362621.

It can be written as a sum of positive squares in 8 ways, for example, as 11704643344 + 114559233156 = 108188^2 + 338466^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403417 + ... + 644416.

It is an arithmetic number, because the mean of its divisors is an integer number (5768850087).

Almost surely, 2^126263876500 is an apocalyptic number.

126263876500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126263876500 is an abundant number, since it is smaller than the sum of its proper divisors (150640927676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126263876500 is a wasteful number, since it uses less digits than its factorization.

126263876500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048093 (or 1048081 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 126263876500 in words is "one hundred twenty-six billion, two hundred sixty-three million, eight hundred seventy-six thousand, five hundred".