64949653530 has 48 divisors (see below), whose sum is σ = 168986787840. Its totient is φ = 17307837024.

The previous prime is 64949653499. The next prime is 64949653543. The reversal of 64949653530 is 3535694946.

64949653530 is a `hidden beast` number, since 6 + 4 + 9 + 49 + 65 + 3 + 530 = 666.

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 121242 + ... + 380261.

It is an arithmetic number, because the mean of its divisors is an integer number (3520558080).

Almost surely, 2^64949653530 is an apocalyptic number.

64949653530 is an abundant number, since it is smaller than the sum of its proper divisors (104037134310).

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

64949653530 is a wasteful number, since it uses less digits than its factorization.

64949653530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502955 (or 502952 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 54.

The spelling of 64949653530 in words is "sixty-four billion, nine hundred forty-nine million, six hundred fifty-three thousand, five hundred thirty".