526872398640 has 320 divisors, whose sum is σ = 1915056000000. Its totient is φ = 117318684672.

The previous prime is 526872398623. The next prime is 526872398653. The reversal of 526872398640 is 46893278625.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 28091986 + ... + 28110734.

It is an arithmetic number, because the mean of its divisors is an integer number (5984550000).

Almost surely, 2^526872398640 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 526872398640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957528000000).

526872398640 is an abundant number, since it is smaller than the sum of its proper divisors (1388183601360).

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

526872398640 is a wasteful number, since it uses less digits than its factorization.

526872398640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19204 (or 19198 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 526872398640 in words is "five hundred twenty-six billion, eight hundred seventy-two million, three hundred ninety-eight thousand, six hundred forty".