523278296240 has 320 divisors, whose sum is σ = 1516942909440. Its totient is φ = 163817717760.

The previous prime is 523278296231. The next prime is 523278296263. The reversal of 523278296240 is 42692872325.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84765794 + ... + 84771966.

It is an arithmetic number, because the mean of its divisors is an integer number (4740446592).

Almost surely, 2^523278296240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523278296240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758471454720).

523278296240 is an abundant number, since it is smaller than the sum of its proper divisors (993664613200).

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

523278296240 is a wasteful number, since it uses less digits than its factorization.

523278296240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500 (or 6494 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 523278296240 in words is "five hundred twenty-three billion, two hundred seventy-eight million, two hundred ninety-six thousand, two hundred forty".