64396524504 has 64 divisors (see below), whose sum is σ = 173620389600. Its totient is φ = 19786300416.

The previous prime is 64396524473. The next prime is 64396524529. The reversal of 64396524504 is 40542569346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75652 + ... + 366764.

Almost surely, 2^64396524504 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 64396524504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86810194800).

64396524504 is an abundant number, since it is smaller than the sum of its proper divisors (109223865096).

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

64396524504 is a wasteful number, since it uses less digits than its factorization.

64396524504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291844 (or 291840 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 64396524504 in words is "sixty-four billion, three hundred ninety-six million, five hundred twenty-four thousand, five hundred four".