64396524505 has 8 divisors (see below), whose sum is σ = 77278017600. Its totient is φ = 51515760816.

The previous prime is 64396524473. The next prime is 64396524529. The reversal of 64396524505 is 50542569346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64396524505 - 2⁵ = 64396524473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35556 + ... + 360634.

It is an arithmetic number, because the mean of its divisors is an integer number (9659752200).

Almost surely, 2^64396524505 is an apocalyptic number.

It is an amenable number.

64396524505 is a deficient number, since it is larger than the sum of its proper divisors (12881493095).

64396524505 is a wasteful number, since it uses less digits than its factorization.

64396524505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364703.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 64396524505 in words is "sixty-four billion, three hundred ninety-six million, five hundred twenty-four thousand, five hundred five".