126402752500 has 30 divisors (see below), whose sum is σ = 276417544634. Its totient is φ = 50561100000.

The previous prime is 126402752479. The next prime is 126402752513. The reversal of 126402752500 is 5257204621.

It can be written as a sum of positive squares in 5 ways, for example, as 13729746276 + 112673006224 = 117174^2 + 335668^2 .

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 25278051 + ... + 25283050.

Almost surely, 2^126402752500 is an apocalyptic number.

126402752500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126402752500 is an abundant number, since it is smaller than the sum of its proper divisors (150014792134).

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

126402752500 is an equidigital number, since it uses as much as digits as its factorization.

126402752500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50561125 (or 50561108 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 126402752500 in words is "one hundred twenty-six billion, four hundred two million, seven hundred fifty-two thousand, five hundred".