126039564500 has 36 divisors (see below), whose sum is σ = 275287747644. Its totient is φ = 50412650400.

The previous prime is 126039564487. The next prime is 126039564557. The reversal of 126039564500 is 5465930621.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 3358897936 + 122680666564 = 57956^2 + 350258^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7930562 + ... + 7946438.

It is an arithmetic number, because the mean of its divisors is an integer number (7646881879).

Almost surely, 2^126039564500 is an apocalyptic number.

126039564500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126039564500 is an abundant number, since it is smaller than the sum of its proper divisors (149248183144).

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

126039564500 is an frugal number, since it uses more digits than its factorization.

126039564500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31773 (or 15884 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 126039564500 in words is "one hundred twenty-six billion, thirty-nine million, five hundred sixty-four thousand, five hundred".