64525143413406 has 128 divisors (see below), whose sum is σ = 142266087936000. Its totient is φ = 19387666561536.

The previous prime is 64525143413327. The next prime is 64525143413411. The reversal of 64525143413406 is 60431434152546.

It is a super-2 number, since 2×64525143413406² (a number of 28 digits) contains 22 as substring.

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, 2014569000 + ... + 2014601028.

It is an arithmetic number, because the mean of its divisors is an integer number (1111453812000).

Almost surely, 2^{64525143413406} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64525143413406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71133043968000).

64525143413406 is an abundant number, since it is smaller than the sum of its proper divisors (77740944522594).

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

64525143413406 is a wasteful number, since it uses less digits than its factorization.

64525143413406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34378.

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 64525143413406 in words is "sixty-four trillion, five hundred twenty-five billion, one hundred forty-three million, four hundred thirteen thousand, four hundred six".