126504609240 has 128 divisors (see below), whose sum is σ = 383110041600. Its totient is φ = 33415848960.

The previous prime is 126504609197. The next prime is 126504609271. The reversal of 126504609240 is 42906405621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8937609 + ... + 8951751.

It is an arithmetic number, because the mean of its divisors is an integer number (2993047200).

Almost surely, 2^126504609240 is an apocalyptic number.

126504609240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126504609240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191555020800).

126504609240 is an abundant number, since it is smaller than the sum of its proper divisors (256605432360).

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

126504609240 is a wasteful number, since it uses less digits than its factorization.

126504609240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14857 (or 14853 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 126504609240 in words is "one hundred twenty-six billion, five hundred four million, six hundred nine thousand, two hundred forty".