526696393440 has 384 divisors, whose sum is σ = 1980885860352. Its totient is φ = 115098716160.

The previous prime is 526696393403. The next prime is 526696393499. The reversal of 526696393440 is 44393696625.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8614819 + ... + 8675741.

It is an arithmetic number, because the mean of its divisors is an integer number (5158556928).

Almost surely, 2^526696393440 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 526696393440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (990442930176).

526696393440 is an abundant number, since it is smaller than the sum of its proper divisors (1454189466912).

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

526696393440 is a wasteful number, since it uses less digits than its factorization.

526696393440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61062 (or 61054 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 57.

The spelling of 526696393440 in words is "five hundred twenty-six billion, six hundred ninety-six million, three hundred ninety-three thousand, four hundred forty".