64605364930 has 128 divisors (see below), whose sum is σ = 127861493760. Its totient is φ = 23430021120.

The previous prime is 64605364913. The next prime is 64605364937. The reversal of 64605364930 is 3946350646.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (64605364937) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 75385062 + ... + 75385918.

It is an arithmetic number, because the mean of its divisors is an integer number (998917920).

Almost surely, 2^64605364930 is an apocalyptic number.

64605364930 is a deficient number, since it is larger than the sum of its proper divisors (63256128830).

64605364930 is a wasteful number, since it uses less digits than its factorization.

64605364930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 64605364930 in words is "sixty-four billion, six hundred five million, three hundred sixty-four thousand, nine hundred thirty".