64520040502 has 8 divisors (see below), whose sum is σ = 98366619312. Its totient is φ = 31731167400.

The previous prime is 64520040479. The next prime is 64520040569. The reversal of 64520040502 is 20504002546.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264426274 + ... + 264426517.

It is an arithmetic number, because the mean of its divisors is an integer number (12295827414).

Almost surely, 2^64520040502 is an apocalyptic number.

64520040502 is a deficient number, since it is larger than the sum of its proper divisors (33846578810).

64520040502 is a wasteful number, since it uses less digits than its factorization.

64520040502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528852854.

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 64520040502 in words is "sixty-four billion, five hundred twenty million, forty thousand, five hundred two".